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Artykuły w czasopismach na temat „UWB APPLICATIONS”

Autor: Grafiati

Data publikacji: 11 września 2023

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1

Saeidi, Tale, Idris Ismail, Wong Peng Wen, Adam R. H. Alhawari i Ahmad Mohammadi. "Ultra-Wideband Antennas for Wireless Communication Applications". International Journal of Antennas and Propagation 2019 (22.04.2019): 1–25. http://dx.doi.org/10.1155/2019/7918765.

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A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented. These antennas which are taken into account are listed as wide-band microstrip antenna, wide-band monopole antenna over a plate, wide-slot UWB antenna, stacked patch UWB antenna, taper slot (TSA) UWB antenna, metamaterial (MTM) structure UWB antennas, elliptical printed monopole UWB antenna, and flexible wearable UWB antenna. The antennas’ performance is compared based on their size and how they can be applicable for portable communication device applications. This review paper furnishes a proper direction to select varieties of figures in terms of impedance bandwidth, gain, directivity, dimensions, time domain characteristics, and materials affecting these antenna’s characteristics.

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2

Kamboj, Sheetal, i Amit Kumar. "CPW-Fed Ring Antenna For UWB Applications". International Journal of Engineering Research 3, nr 3 (1.03.2014): 146–49. http://dx.doi.org/10.17950/ijer/v3s3/303.

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Kumar, Om Prakash, Pramod Kumar, Tanweer Ali, Pradeep Kumar i Shweta Vincent. "Ultrawideband Antennas: Growth and Evolution". Micromachines 13, nr 1 (30.12.2021): 60. http://dx.doi.org/10.3390/mi13010060.

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Narrowband antennas fail to radiate short pulses of nano- or picosecond length over the broader band of frequencies. Therefore, Ultrawideband (UWB) technology has gained momentum over the past couple of years as it utilizes a wide range of frequencies, typically between 3.1–10.6 GHz. UWB antennas have been utilized for various applications such as ground-penetrating radars, disaster management through detection of unexploded mines, medical diagnostics, and commercial applications ranging from USB dongles to detection of cracks in highways and bridges. In the first section of the manuscript, UWB technology is detailed with its importance for future wireless communications systems. In the next section various types of UWB antennas and their design methodology are reviewed, and their important characteristics are highlighted. In section four the concept of a UWB notch antenna is presented. Here various methods to obtain the notch, such as slots, parasitic resonators, metamaterials, and filters are discussed in detail. In addition, various types of important notch antenna design with their technical specifications, advantages, and disadvantages are presented. Finally, the need of reconfigurable UWB notch antennas is discussed in the next section. Here various insight to the design of frequency reconfigurable notch antennas is discussed and presented. Overall, this article aims to showcase the beginnings of UWB technology, the reason for the emergence of notching in specific frequency bands, and ultimately the need for reconfiguring UWB antennas along with their usage.

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4

Li, L., Z. L. Zhou i J. S. Hong. "Compact UWB antenna with four band-notches for UWB applications". Electronics Letters 47, nr 22 (2011): 1211. http://dx.doi.org/10.1049/el.2011.2334.

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5

Nath, Rhea, i Promod Singh. "MIMO Antenna for UWB Applications". International Journal of Engineering Trends and Technology 53, nr 1 (25.11.2017): 13–18. http://dx.doi.org/10.14445/22315381/ijett-v53p204.

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6

Tneyoung Yang, Seong-Youp Suh, R. Nealy, W. A. Davis i W. L. Stutzinan. "Compact antennas for UWB applications". IEEE Aerospace and Electronic Systems Magazine 19, nr 5 (maj 2004): 16–20. http://dx.doi.org/10.1109/maes.2004.1301221.

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7

Immoreev, Igor Y. "Practical applications of UWB technology". IEEE Aerospace and Electronic Systems Magazine 25, nr 2 (luty 2010): 36–42. http://dx.doi.org/10.1109/maes.2010.5442175.

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8

Jiang, Shaohua, Miroslaw J. Skibniewski, Yongbo Yuan, Chengshuang Sun i Yujie Lu. "ULTRA-WIDE BAND APPLICATIONS IN INDUSTRY: A CRITICAL REVIEW / ULTRAPLAČIOS JUOSTOS BANGŲ TAIKYMAS PRAMONĖJE: KRITINĖ APŽVALGA". Journal of Civil Engineering and Management 17, nr 3 (20.09.2011): 437–44. http://dx.doi.org/10.3846/13923730.2011.596317.

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As a radically distinct wireless communication approach compared to traditional narrow band systems, ULTRA-WIDE BAND (UWB) technology has been applied in various sectors and is gaining in popularity, but there appears to be a lack of systematic summary of the potential of this technology. To provide insights into UWB technology for the uninitiated reader, this paper explores the state-of-the-art research and development of UWB applications in many sectors including the construction industry without concerning the technological details. First this paper presents the key concepts related to UWB technology and a brief history of UWB. Then it summarizes the UWB's technical features which enable its popularity in industry. Finally, application examples of UWB technology in many sectors, including construction, are presented to analyze and highlight the impact on the industry performance. In the near future UWB technology is expected to become a very important component and have far-reaching impact in ubiquitous computing. Santrauka Bevielio ryšio ultraplačios juostos bangų (UWB) technologija, radikaliai besiskirianti nuo tradicinės siauros juostos sistemų, buvo plačiai taikoma įvairiuose sektoriuose ir tampa vis populiaresnė, tačiau akivaizdu, kad vis dar trūksta susistemintos šios technologijos galimybių apžvalgos. Siekiant pateikti įžvalgas apie UWB technologiją, šiame straipsnyje analizuojami dabartiniai UWB technologijos tyrimai ir UWB taikymas įvairiuose sektoriuose, įskaitant statybą, nenagrinėjant technologinių detalių. Pirmiausia šiame straipsnyje pristatomos pagrindinės sąvokos, susijusios su UWB technologija ir UWB technologijos istorine raida. Tada susisteminamos techninės UWB technologijos charakteristikos, kurios lemia jos populiarumą pramonėje. Galiausiai analizuojami UWB technologijos taikymo pavyzdžiai įvairiuose sektoriuose, įskaitant statybą, atkreipiant dėmesį į jų poveikį pramonės veiklai. Netolimoje ateityje UWB technologija turėtų tapti labai svarbi ir turėti ilgalaikį poveikį visuotinei kompiuterizacijai.

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9

Rashid, Nasr, i Mohamed Shehata. "Ultra-wide band energy harvesting for ultra-low power electronics applications". International Journal of Electrical and Computer Engineering (IJECE) 11, nr 2 (1.04.2021): 1158. http://dx.doi.org/10.11591/ijece.v11i2.pp1158-1165.

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In this work, the feasibility of energy harvesting in the useful UWB band (i.e., 3.1-10.6 GHz) is analytically investigated. A typical UWB communications/EH chain in this band is modeled and analyzed, considering the spectral constraints imposed by the federal communications commission (FCC) to UWB signaling. Based on the developed model, accurate analytical expressions are derived for the average received powers of two common types of impulse radio UWB (IR-UWB) signaling waveforms. Numerical simulations on the system-level show excellent agreement with the obtained analytical expressions. Moreover, the DC power levels expected from spectrally constrained IR-UWB waveforms are extremely low (less than 0.3 microwatt) and, accordingly, provide useful guidelines for the design and development of ULP electronics applications in the sub-microwatt range.

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10

Zhou, Zhiyi. "An Overview of Ultra-Wideband Positioning Technology and Its Applications". SHS Web of Conferences 144 (2022): 02001. http://dx.doi.org/10.1051/shsconf/202214402001.

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UWB is a kind of wireless communication technology used in plenty of high-tech factories but seldom seen in humans’ daily life. Encouraged by the public, experts are urged to do futher reserch because of its accurate positioning. This paper introduces the background and features of UWB. Five methods of UWB localization are listed and the disadvantages and principals of each method are also listed, like RSSI (Received Signal Strength Indication). Existing applications of UWB are divided and shown in two types: which are categorized by function and scene. The conclusion and expectation about UWB are shown: creative methods need to be applied to drop the cost of such products so that they have access to potential customers.

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11

Kumar, Om Prakash, Tanweer Ali, Pramod Kumar, Pradeep Kumar i Jaume Anguera. "An Elliptical-Shaped Dual-Band UWB Notch Antenna for Wireless Applications". Applied Sciences 13, nr 3 (18.01.2023): 1310. http://dx.doi.org/10.3390/app13031310.

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This paper discusses an elliptical ultrawideband (UWB) antenna and a dual-band UWB notch antenna. To achieve a UWB bandwidth, two corner cuts are etched into the rectangular slot on the partial ground plane. An inverted-U-shaped and conductor-shaped resonator are utilized to achieve dual-band notch characteristics on a partial ground plane. The suggested antenna has an overall dimension of . The suggested UWB antenna has a gain of 4.9 dB, a bandwidth of 2.5–11 GHz, a linear phase response, a group delay of less than 1 ns, and a steady radiation pattern. The suggested UWB notch rejects WLAN and ITU bands from 5.2–5.7 GHz and 7.2–8.5 GHz, respectively, with an impedance bandwidth of 2.5–11 GHz. The UWB notch antenna features a linear phase, a group delay of less than 1 ns, and a stable radiation pattern.

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12

Mishra, N., i S. Beg. "A Miniaturized Microstrip Antenna for Ultra-wideband Applications". Advanced Electromagnetics 11, nr 2 (12.06.2022): 54–60. http://dx.doi.org/10.7716/aem.v11i2.1948.

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In this paper, the authors present an ultra-wideband (UWB) planar antenna with defected ground structure (DGS) for various wireless applications. The operating frequency of the proposed geometry is in the range of 3.1 to 10.6 GHz. The proposed compact geometry antenna is applicable for the UWB applications. In order to optimize the dimensions of the antenna, a parametric analysis has been performed. The measured S11 magnitude is less than -10 dB over the band, and it has an impedance bandwidth of 10.60 GHz. The designed UWB antenna gives maximum radiation efficiency and gain of 96.5% and 3.30 dBi, respectively. Also, it gives good time-domain characteristics over the entire resonating band. The designed UWB antenna is simple geometry, and it is applicable for numerous wireless applications.

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13

Xu, Liang, Bin Yuan i Shuang He. "DESIGN OF NOVEL UWB SLOT ANTENNA FOR BLUETOOTH AND UWB APPLICATIONS". Progress In Electromagnetics Research C 37 (2013): 211–21. http://dx.doi.org/10.2528/pierc13011002.

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14

Moreno de Jong van Coevorden, C., M. Fernández Pantoja, Salvador G. García, A. Rubio Bretones, R. Gómez-Martín i K. Palmer. "Multiobjective-Optimized Design of a New UWB Antenna for UWB Applications". International Journal of Antennas and Propagation 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/476878.

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A multiobjective genetic algorithm has been applied to design a new printed, bow-tie antenna for ultrawideband applications, that is, ground penetrating radar, short range and high data rate communications, and so forth. The ultrawideband performance with respect to antenna impedance and gain is achieved by an optimized resistive loading profile and flare angle. A low-cost prototype is manufactured and numerical simulations are validated with measurements.

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15

Tripathi, Shrivishal, Akhilesh Mohan i Sandeep Yadav. "A Compact UWB Koch Fractal Antenna for UWB Antenna Array Applications". Wireless Personal Communications 92, nr 4 (20.08.2016): 1423–42. http://dx.doi.org/10.1007/s11277-016-3613-1.

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16

Al-Gburi, Ahmed Jamal Abdullah, Zahriladha Zakaria, Imran Mohd Ibrahim, Muhammad Firdaus Akbar, Aymen Dheyaa Khaleel Al-Obaidi i Asma Khabba. "A parametric study on strawberry radiated shaped monopole antenna for ultrawide-band applications". Bulletin of Electrical Engineering and Informatics 12, nr 1 (1.02.2023): 232–39. http://dx.doi.org/10.11591/eei.v12i1.4547.

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This article gives a parametric study on strawberry-shaped monopole antennas for ultra-wideband (UWB) systems. The antenna design consisted of three different parametric design steps to structure the strawberry radiated monopole antenna. The scheduled strawberry monopole antenna was simulated on an FR4 substrate in a low profile for UWB applications. The total physical dimension is 26 mm×26 mm×1.6 mm, corresponding to the centre frequency of 7.5 GHz. The strawberry antenna is fed via a coplanar waveguide (CPW) to attain the best impedance matching for UWB systems. The presented monopole antenna has an impedance UWB bandwidth of 11.0 GHz from 2.6 GHz up to 13.6 GHz at −10 dB return loss. The simulated UWB strawberry monopole antenna displays an omnidirectional radiation behaviour with a simulated gain of 7.3 dB at 13.6 GHz, a directivity of 7.5 dBi at 13.6 GHz and favourable radiation efficiency of 97%. The proposed monopole UWB strawberry antenna has the technological possibility to be used for UWB applications.

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17

Andrade-Gonzalez, Edgar Alejandro, Juan Carlos Ordoñez-Martínez, Mario Reyes-Ayala, José Alfredo Tirado Méndez i Hilario Terres-Peña. "Compact Fractal MIMO antenna for UWB applications". WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (30.08.2021): 146–51. http://dx.doi.org/10.37394/23204.2021.20.20.

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In this article, a compact ultra-wide band (UWB) multiple input multiple output (MIMO) antenna system is showed. This antenna is based on fractal Fibonacci circles and operates over wide frequency range from 2.9 to 14.51 GHz. The dielectric used was Duroid substrate with dielectric constant εr = 2.2 and thickness of substrate 1.27 mm. This UWB MIMO antenna is simulated by HFSS. In order to improve the isolation between the elements of the antenna a parasitic structure is used, getting S12 and very low ECC. Also, the Total Active reflection Coefficient (TARC) was obtained. Proposed antenna can be used for UWB communication applications and its size is 64 × 38mm2

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18

Nursal, Firdaus, Rahmadi Kurnia i Ikhwana Elfitri. "Ultra Wideband (UWB) Multiple Input and Multiple Output (MIMO) Antenna Design : A Review". Andalas Journal of Electrical and Electronic Engineering Technology 3, nr 1 (15.05.2023): 35–43. http://dx.doi.org/10.25077/ajeeet.v3i1.33.

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Since the Federal Communication Commission (FCC) issued a license for the 3.1 – 10.6 GHz frequency spectrum for unlicensed radio applications, many papers have been published regarding ultrawideband (UWB) antenna design. The issue of UWB antenna design is determining how to create an antenna with a wide bandwidth, capable of rejecting communication systems that coexist with UWB bands, and capable of designing UWB antennas for multiple input multiple output (MIMO) communication system applications. This study examines the design of UWB antennas with monopole and slot types based on evaluations published over the last two decades. The discussion began with UWB and MIMO systems and then moved on to the configuration of monopole and slot UWB antennas. UWB antenna layout with notched bands and the several types of notched bands available. Finally, two port and quad-port MIMO antenna configuration is examined. To further understand UWB antenna design, numerous UWB antenna configurations are simulated. The outcomes of this review can be utilized as preliminary reading material for researchers looking into UWB antennas.

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Kumar Ramachandragowda, Santhosh, Devaraju Ramakrishna i Rajashree Narendra. "An efficient ultra-wideband digital transceiver for wireless applications on the field-programmable gate array platform". International Journal of Electrical and Computer Engineering (IJECE) 13, nr 4 (1.08.2023): 4432. http://dx.doi.org/10.11591/ijece.v13i4.pp4432-4440.

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<p>The ultra-wideband (UWB) technology is a promising short-range communication technology for most wireless applications. The UWB works at higher frequencies and is affected by interferences with the same frequency standards. This manuscript has designed an efficient and low-cost implementation of IEEE 802.15.4a-based UWB-digital transceiver (DTR). The design module contains UWB transmitter (TX), channel, and UWB-receiver (RX) units. Convolutional encoding and modulation units like burst position modulation and binary phase-shift keying modulation are used to construct the UWB-TX. The synchronization and Viterbi decoder units are used to recover the original data bits and are affected by noise in UWB-RX. The UWB-DTR is synthesized using Xilinx ISE<sup>®</sup> environment with Verilog hardware description language (HDL) and implemented on Artix-7 field-programmable gate array (FPGA). The UWB-DTR utilizes less than 2% (slices and look-up table/LUTs), operates at 268 MHz, and consumes 91 mW of total power on FPGA. The transceiver achieves a 6.86 Mbps data rate, which meets the IEEE 802.15.4a standard. The UWB-DTR module obtains the bit error rate (BER) of 2×10<sup>-4</sup> by transmitting 105 data bits. The UWB-DTR module is compared with similar physical layer (PHY) transceivers with improvements in chip area (slices), power, data rate, and BER. </p>

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20

Kolakowski, Jerzy, Vitomir Djaja-Josko i Marcin Kolakowski. "UWB Monitoring System for AAL Applications". Sensors 17, nr 9 (12.09.2017): 2092. http://dx.doi.org/10.3390/s17092092.

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Bhavani, S., T. Shanmuganantham, N. Mouni i G. Jaydeep Sai. "Textile UWB Antennas for Biomedical Applications". IRO Journal on Sustainable Wireless Systems 4, nr 3 (15.09.2022): 173–84. http://dx.doi.org/10.36548/jsws.2022.3.004.

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In recent years, there has been an increase in worry about the security of Wireless Body Area Network systems, particularly worn electronics such as military, entertainment, and medical devices. The ability to communicate wirelessly from or to the body via conformal and wearable antennas is a major characteristic of modern wearable electronics. In this work, circular ring and fractal antennas are designed using a wearable substrate of denim with a dielectric constant of 1.7. Design and simulations are carried out in the CST Microwave environment and different performance characteristics of the antenna are examined in free space and on body medical applications.

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Mescia, Luciano, Gianvito Mevoli, Claudio Maria Lamacchia, Michele Gallo, Pietro Bia, Domenico Gaetano i Antonio Manna. "Sinuous Antenna for UWB Radar Applications". Sensors 22, nr 1 (30.12.2021): 248. http://dx.doi.org/10.3390/s22010248.

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In this paper, the recent progress on sinuous antennas is detailed, focusing the attention on the antenna geometry, dielectric structure, and miniaturization techniques. In the first part, we introduce the basic principles of the frequency-independent antenna, in particular the self-complementary and log-periodic geometries, as well as the antenna geometries, all characterized in terms of angles. The operating principles, main advantages, system design considerations, limits, and challenges of conventional sinuous antennas are illustrated. Second, we describe some technical solutions aimed to ensure the optimal trade-off between antenna size and radiation behavior. To this aim, some special modification of the antenna geometry based on the meandering as well as on the loading with dielectric structures are presented. Moreover, the cavity backing technique is explained in detail as a method to achieve unidirectional radiation. Third, we present a new class of supershaped sinuous antenna based on a suitable merge of the 2D superformula and the sinuous curve. The effect of the free parameters change on the antenna arm geometry as well as the performance improvement in terms of directivity, beam stability, beam angle, gain, and radiating efficiency are highlighted.

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23

Islam, M. M., M. T. Islam, M. Samsuzzaman i M. R. I. Faruque. "Compact metamaterial antenna for UWB applications". Electronics Letters 51, nr 16 (sierpień 2015): 1222–24. http://dx.doi.org/10.1049/el.2015.2131.

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Sanz-Izquierdo, B., P. R. Young, Q. Bai i J. C. Batchelor. "Compact UWB monopole for multilayer applications". Electronics Letters 42, nr 1 (2006): 5. http://dx.doi.org/10.1049/el:20063845.

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Bourqui, Jeremie, i Elise C. Fear. "Shielded UWB Sensor for Biomedical Applications". IEEE Antennas and Wireless Propagation Letters 11 (2012): 1614–17. http://dx.doi.org/10.1109/lawp.2012.2235814.

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Sim, Chow-Yen-Desmond, Wen-Tsan Chung i Ching-Her Lee. "Compact Slot Antenna for UWB Applications". IEEE Antennas and Wireless Propagation Letters 9 (2010): 63–66. http://dx.doi.org/10.1109/lawp.2010.2041629.

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Iji, Ayobami, X. Zhu i M. Heimlich. "Heuristic receiver for implantable UWB applications". Microelectronics Journal 45, nr 6 (czerwiec 2014): 728–33. http://dx.doi.org/10.1016/j.mejo.2014.04.001.

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Park, Sang Yong, i Jong Kweon Park. "Compact chip antenna for UWB applications". Microwave and Optical Technology Letters 53, nr 2 (15.12.2010): 473–77. http://dx.doi.org/10.1002/mop.25685.

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Brar, Rajveer Singh, Sarthak Singhal i Amit Kumar Singh. "Fractal dipole antenna for UWB applications". Microwave and Optical Technology Letters 58, nr 1 (26.11.2015): 39–47. http://dx.doi.org/10.1002/mop.29481.

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Rao, B. Venkateshwar, i Sunita Panda. "Optimal Design of Microstrip Antenna for UWB Applications using EBG Structure with the Aid of Pigeon Inspired Optimization Technique". International Journal of Electrical and Electronics Research 10, nr 4 (30.12.2022): 1315–20. http://dx.doi.org/10.37391/ijeer.100486.

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Ultra-wideband (UWB) technology has become influential among academic research and industry because of its vast application in the wireless world. However, several drawbacks have in UWB based antenna. To tackle this, EBG (Electromagnetic Band Gap) structures have proposed. Furthermore, the design of EBG structures is very complex due to the uncertain EBG properties dependence upon unit cell parameters. Therefore, to the optimal design of micro strip antenna for applications of UWB, EBG-PIO (pigeon inspired optimization) on the basis of micro strip patch antenna has been proposed to enhance micro strip antenna’s performance in terms of directivity, gain, bandwidth and efficiency. To select design parameters optimally, the PIO technique is proposed with substrate material of Rogers RT/Duroid 6010 with height h = 1.6 mm. Proposed antenna return loss remains –34.6 dB to cover applications of UWB (3.1–10.6 GHz). Also, results exhibited by both proposed technique and fabricated model-based antenna has outperformed than existing techniques regarding directivity, return loss, bandwidth, gain and radiation efficiency.

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Zhang, Zhuohang, i Zhongming Pan. "Design of Reconfigurable Bandwidth Filtering Antenna and Its Applications in IR/UWB System". Electronics 9, nr 1 (15.01.2020): 163. http://dx.doi.org/10.3390/electronics9010163.

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A reconfigurable bandwidth antenna for an impulse radio-UWB (IR/UWB) system design is illustrated in this paper. By adopting a continuously tunable low-pass filter by varactor at the feed of the antenna, the proposed antenna obtains a continuous tunable bandwidth from 1.02 GHz to 2.42 GHz. To ensure the identifiability of transmitted pulses in (IR-UWB) system, the antenna is analyzed in both frequency domain and time domain. The proposed antenna is valid with a system fidelity factor (SFF) above 0.8 while the bandwidth is tuning. The compact size, low cost, and tunable bandwidth with the identifiability of the transmitted pulse makes it suitable for UWB impulse radars to improve the utility ratio of frequency, and dynamic adjustment avoids interference of the IR-UWB in other communication frequency bands.

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Delamare, Mickael, Remi Boutteau, Xavier Savatier i Nicolas Iriart. "Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications". Sci 1, nr 3 (31.10.2019): 62. http://dx.doi.org/10.3390/sci1030062.

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Many applications in the context of Industry 4.0 require precise localization. However, indoor localization remains an open problem, especially in complex environments such as industrial environments. In recent years, we have seen the emergence of Ultra WideBand (UWB) localization systems. The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment. To do so, we implemented an experimental protocol to evaluate the accuracy of the UWB system both statically and dynamically. The UWB system is compared to a ground truth obtained by a motion capture system with a millimetric accuracy.

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Delamare, Mickaël, Remi Boutteau, Xavier Savatier i Nicolas Iriart. "Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications". Sci 2, nr 1 (29.02.2020): 7. http://dx.doi.org/10.3390/sci2010007.

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Many applications in the context of Industry 4.0 require precise localization. However, indoor localization remains an open problem, especially in complex environments such as industrial environments. In recent years, we have seen the emergence of Ultra WideBand (UWB) localization systems. The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment. To do so, we implemented an experimental protocol to evaluate the accuracy of the UWB system both statically and dynamically. The UWB system is compared to a ground truth obtained by a motion capture system with a millimetric accuracy.

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Delamare, Mickaël, Remi Boutteau, Xavier Savatier i Nicolas Iriart. "Static and Dynamic Evaluation of an UWB Localization System for Industrial Applications". Sci 2, nr 2 (3.04.2020): 23. http://dx.doi.org/10.3390/sci2020023.

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Many applications in the context of Industry 4.0 require precise localization. However, indoor localization remains an open problem, especially in complex environments such as industrial environments. In recent years, we have seen the emergence of Ultra WideBand (UWB) localization systems. The aim of this article is to evaluate the performance of a UWB system to estimate the position of a person moving in an indoor environment. To do so, we implemented an experimental protocol to evaluate the accuracy of the UWB system both statically and dynamically. The UWB system is compared to a ground truth obtained by a motion capture system with a millimetric accuracy.

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Jamal Abdullah Al-Gburi, Ahmed, Imran Bin Mohd Ibrahim, Zahriladha Zakaria, Badrul Hisham Ahmad, Noor Azwan Bin Shairi i Mohammed Yousif Zeain. "High Gain of UWB Planar Antenna Utilising FSS Reflector for UWB Applications". Computers, Materials & Continua 70, nr 1 (2022): 1419–36. http://dx.doi.org/10.32604/cmc.2022.019741.

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Peng, Huaxia, Yufeng Luo i Junding Zhao. "COMPACT MICROSTRIP UWB BANDPASS FILTER WITH TWO BAND-NOTCHES FOR UWB APPLICATIONS". Progress In Electromagnetics Research Letters 45 (2014): 25–30. http://dx.doi.org/10.2528/pierl14011504.

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Yazdi, Mohammad, i Nader Komjani. "Planar UWB monopole antenna with dual band-notched characteristics for UWB applications". Microwave and Optical Technology Letters 55, nr 2 (21.12.2012): 241–45. http://dx.doi.org/10.1002/mop.27301.

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Naqvi, Syed Aftab. "Miniaturized triple-band and ultra-wideband (UWB) fractal antennas for UWB applications". Microwave and Optical Technology Letters 59, nr 7 (16.05.2017): 1542–46. http://dx.doi.org/10.1002/mop.30582.

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Jameel, Maryam S., Yaqeen S. Mezaal i Dogu Cagdas Atilla. "Miniaturized Coplanar Waveguide-Fed UWB Antenna for Wireless Applications". Symmetry 15, nr 3 (2.03.2023): 633. http://dx.doi.org/10.3390/sym15030633.

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This study presents a compact ultra-wideband (UWB) antenna fed by a coplanar waveguide (CPW) with huge bandwidth for the demands of modern wireless communities. To overcome some technical limitations of the employed substrate and UWB antenna design, a slotted patch resonator was used to create and simulate this antenna based on Locked-Key topology. It has been printed on a 1.5 mm-thick FR4 substrate with a dielectric constant of 4.4. A feeder with characteristic impedances of 50 Ω has been employed. A CST electromagnetic simulator has been employed to simulate and analyze the antenna design. It is operated within the UWB spectrum with a bandwidth of 10.354 GHz, spanning 3.581 to 14 GHz. The overall surface area is 27 × 25 mm2. The gain and maximum efficiency within UWB are better than 3 dBi and 82%, respectively. The antenna is fabricated, and the simulated results are correlated with the measured ones. Finally, the equivalent circuit models for the antenna and rectifier circuit are simulated and measured.

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Rahman, MuhibUr, Mahdi NagshvarianJahromi, Seyed Mirjavadi i Abdel Hamouda. "Compact UWB Band-Notched Antenna with Integrated Bluetooth for Personal Wireless Communication and UWB Applications". Electronics 8, nr 2 (1.02.2019): 158. http://dx.doi.org/10.3390/electronics8020158.

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A compact band-notched UWB (Ultra-Wide Band) antenna with integrated Bluetooth is developed for personal wireless communication and UWB applications. The antenna operates at the UWB frequency band (3.1–10.6 GHz) as well as Bluetooth (2.4–2.484 GHz), with band-notch characteristics at the Wireless Local Area Network (WLAN) frequency band (5–6 GHz). A new technique of integrating Bluetooth within a UWB band-notched antenna is developed and analyzed. The UWB frequency band is realized by utilizing a conventional cylindrical radiating patch and a modified partial ground plane. The Bluetooth band is integrated using a miniaturized resonator with the addition of capacitors. Further, to mitigate the interference of the WLAN frequency band within the UWB spectrum, a conventional slot resonator is integrated within the radiator to achieve the task. The antenna is designed and fabricated, and its response in each case is provided. Moreover, the antenna exhibits a good radiation pattern with a stable gain in the passband. The present antenna is also compared to state-of-the-art structures proposed in the literature. The miniaturized dimensions (30 × 31 mm2) of the antenna make it an excellent candidate for UWB and personal wireless communication applications.

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Ali, Alaa Mohsen, i ِAli Khalid Jassim. "Design UWB antenna with notch band for WiMAX application". Bulletin of Electrical Engineering and Informatics 12, nr 2 (1.04.2023): 815–21. http://dx.doi.org/10.11591/eei.v12i2.4104.

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During the last two decades, radar, remote sensing, and imaging applications have all made use of ultra-wide band (UWB) technology. UWB systems are susceptible to interference from narrowband signals, hence this work provides a single-notch antenna for the UWB system. There are two stages to the design process. After creating the baseband antenna, it is necessary to create a notched band UWB antenna by carving a slot into patch antenna. In the UWB range (3.1-10.6) GHz, the UWB antenna has the dimensions of 20x30 mm with substrate thickness 1.6 mm made from FR4 lossy. The design relative permittivity was 4.3, a rectangular patch with a portion of the ground is used in the design. A typical slot-shaped resonator is connected to the patch to reject a frequency band (3.273-3.81) GHz which is a world interoperability for microwave access (WiMAX) to solve the problem of the interference with other bands in UWB system For WiMAX applications. The suggested UWB filter will achieve notch band response centered at the resonance frequency of 3,4 GHz. Analysis CSTS v2020 software was used to carry out the simulation. Priority should be given to what has been learned rather than what has been accomplished.

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Ashar, Dhyey, Ajay Kumar yadav i Mamta Sharma. "SAR Evaluation of Flexible UWB Antenna for Wearable Applications". Journal of Physics: Conference Series 2312, nr 1 (1.08.2022): 012051. http://dx.doi.org/10.1088/1742-6596/2312/1/012051.

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Abstract This manuscript appearance a compact and Ultra-Wideband (UWB) antenna for wearable applications. The proposed coplanar waveguide (CPW) feed circular configuration patch antenna is simulated on two different dielectric materials one flexible polyamide based Cordura fabric and other is FR-4, with small footprint of size 36 × 46 mm2. The antenna works in complete UWB band from 3.1 to 10.6 GHz. The performance of the antenna was examined in free space and three-layer human body phantom. This research work also presents the flexibility analysis of structure for both substrates. These examinations exhibited that proposed UWB antenna is an appropriate contender for wireless body area network (WBAN) operation.

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Parida, Rajeev K., Arjuna Muduli, Dhruba C. Panda i Deepak Kumar Nayak. "Integrated Multi-Operational Antenna System Design for CR Applications". IOP Conference Series: Materials Science and Engineering 1187, nr 1 (1.09.2021): 012006. http://dx.doi.org/10.1088/1757-899x/1187/1/012006.

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Abstract A four-port multi-operational antenna system is designed for Cognitive Radio application. It consists of a sensing ultra-wideband antenna and three communicating narrowband antenna. The CPW fed monopole is a sensing antenna. It covers 2-11 GHz of the UWB band. The three narrow band antennas are operating at 5.834 GHz, 6.42 GHz, 7.355 GHz, and 8.786 GHz respectively. The mutual coupling is below-15 dB. This integrated UWB/NB antenna system can also be a good candidate for C-band, Maritime radio navigation, and X-band applications.

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Khurshid, Adnan, Jian Dong i Ronghua Shi. "A Metamaterial-Based Compact Planar Monopole Antenna for Wi-Fi and UWB Applications". Sensors 19, nr 24 (9.12.2019): 5426. http://dx.doi.org/10.3390/s19245426.

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Ultrawideband (UWB) antennas are widely used as core devices in high-speed wireless communication. A novel compact UWB monopole antenna with an additional narrow band for Wi-Fi applications comprising a metamaterial (MTM) is proposed in this paper. The antenna has a compact size of 27 × 33 mm2 and consists of a V-shaped slot with two rectangular slots in the radiation patch. The inductance and capacitance develop due to the V-shaped slot in the radiation patch. The proposed antenna has −10 dB bandwidths of 3.2 GHz to 14 GHz for UWB and 2.38 GHz to 2.57 GHz for narrowband, corresponding to 144% and 7.66% fractional bandwidths, respectively. The measured gain and efficiency meet the desired values for UWB and Wi-Fi applications. To verify the performance of the antenna, the proposed antenna is fabricated and tested. The simulated and measured results agree well at UWB frequencies and Wi-Fi frequencies, and the antenna can be used as a smart device for portable IoT applications.

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Mahfuz, M. M. Hasan, Md Rafiqul Islam, Mohamed Hadi Habaebi i Norun Abdul Malek. "SEMICIRCULAR SLOT BASED UWB MICROSTRIP PATCH ANTENNA FOR VARIABLE BAND NOTCHED APPLICATIONS". ASEAN Engineering Journal 12, nr 4 (29.11.2022): 145–49. http://dx.doi.org/10.11113/aej.v12.17793.

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The patch antenna with Ultra-Wide Band (UWB) characteristics is a promising candidate for wireless communication. It is a major research problem to mitigate electromagnetic interference (EMI) with narrowband technologies such as 5G lower band, Wi-MAX, WLAN and satellite band, which are all in the UWB region. This study describes a UWB antenna with variable band rejection that can be used to avoid interference with Wi-MAX and 5G lower band applications. The UWB characteristics of a simple rectangle patch antenna with a faulty ground structure has been designed for operational bandwidth (2.7–13) GHz. A novel method semicircular slot (SCS) at the radiation patch creates a band notched from (3.25–3.80) GHz and (3.4–4) GHz. Variable band rejection between (2.95–4.40) GHz can be achieved by adjusting the “Wa” values. When measured over the band rejection frequency, the return loss (S11) and VSWR values are very close to 0 dB and larger than 2. The simulated and measured results such as return loss, VSWR, 2-D polar pattern and gain have almost similar agreement. The design of the suggested antenna is simple, compact and efficient for Wi-MAX application, this is an ideal UWB antenna with the band notch characteristics.

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Shukla, Shambhavi. "Ultra-Wide Band MIMO Antennas with Notched-Band Characteristics of Various Slot Geometries for Wireless Applications". International Journal for Research in Applied Science and Engineering Technology 11, nr 5 (31.05.2023): 2002–5. http://dx.doi.org/10.22214/ijraset.2023.51917.

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Abstract: Ultra-Wide Band (UWB) technology has experienced rapid growth over the last few years due to its various applications. Antennas developed for UWB applications are desired to have notch characteristics for avoiding interference from other existing radio communication systems. Different techniques related to the design and development of band-notched antennas is utilized to improve the antenna performance. This paper presents a comprehensive study of UWB antennas with band-notch characteristics and the effect of taking different slot geometry for multiple-input multiple-output (MIMO) applications.

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Fakhoury, Salah, i Karim Ismail. "Ultra-Wideband-Based Time Occupancy Analysis for Safety Studies". Sensors 23, nr 17 (31.08.2023): 7551. http://dx.doi.org/10.3390/s23177551.

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This study investigates the use of ultra-wideband (UWB) tags in traffic conflict techniques (TCT) for the estimation of time occupancy in a real-world setting. This study describes UWB technology and its application in the TCT framework. Many experiments were conducted to evaluate the accuracy of the occupancy time measurement using a UWB-based tag. The UWB performance was measured using data from UWB tags as well as a video camera system by subtracting the time occupancy within a conflict zone. The results show that the UWB-based system can be utilized to estimate occupancy time with a mean absolute error difference from ground truth measurements of 0.43 s in the case of using two tags and 0.06 s in the case of using one tag in an 8 m × 8 m study area with double-sided two-way communication. This study also highlights the advantages and limitations of using UWB technology in TCT and discusses potential applications and future research directions. The findings of this study suggest that the UWB-based localization of multiple tags needs further improvements to enable consistent multi-tag tracking. In future work, this technology could be utilized to estimate post-encroachment time (PET) in various traffic scenarios, which could improve road safety and reduce the risk of collisions.

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Galajda, Pavol, Martin Pecovsky, Miroslav Sokol, Martin Kmec i Dusan Kocur. "Recent Advances in ASIC Development for Enhanced Performance M-Sequence UWB Systems". Sensors 20, nr 17 (26.08.2020): 4812. http://dx.doi.org/10.3390/s20174812.

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Short-range ultra-wideband (UWB) radar sensors belong to very promising sensing techniques that have received vast attention recently. The M-sequence UWB sensing techniques for radio detection and ranging feature several advantages over the other short-range radars, inter alia superior integration capabilities. The prerequisite to investigate their capabilities in real scenarios is the existence of physically available hardware, i.e., particular functional system blocks. In this paper, we present three novel blocks of M-sequence UWB radars exploiting application-specific integrated circuit (ASIC) technology. These are the integrated 15th-order M-sequence radar transceiver on one chip, experimental active Electronic Communication Committee (ECC) bandpass filter, and miniature transmitting UWB antenna with an integrated amplifier. All these are custom designs intended for the enhancement of capabilities of an M-sequence-based system family for new UWB short-range sensing applications. The design approaches and verification of the manufactured prototypes by measurements of the realized circuits are presented in this paper. The fine balance on technology capabilities (Fc of roughly 120 GHz) and thoughtful design process of the proposed blocks is the first step toward remarkably minimized devices, e.g., as System on Chip designs, which apparently allow broadening the range of new applications.

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Yogesh, Vinish, Jaap H. Buurke, Peter H. Veltink i Chris T. M. Baten. "Integrated UWB/MIMU Sensor System for Position Estimation towards an Accurate Analysis of Human Movement: A Technical Review". Sensors 23, nr 16 (19.08.2023): 7277. http://dx.doi.org/10.3390/s23167277.

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Integrated Ultra-wideband (UWB) and Magnetic Inertial Measurement Unit (MIMU) sensor systems have been gaining popularity for pedestrian tracking and indoor localization applications, mainly due to their complementary error characteristics that can be exploited to achieve higher accuracies via a data fusion approach. These integrated sensor systems have the potential for improving the ambulatory 3D analysis of human movement (estimating 3D kinematics of body segments and joints) over systems using only on-body MIMUs. For this, high accuracy is required in the estimation of the relative positions of all on-body integrated UWB/MIMU sensor modules. So far, these integrated UWB/MIMU sensors have not been reported to have been applied for full-body ambulatory 3D analysis of human movement. Also, no review articles have been found that have analyzed and summarized the methods integrating UWB and MIMU sensors for on-body applications. Therefore, a comprehensive analysis of this technology is essential to identify its potential for application in 3D analysis of human movement. This article thus aims to provide such a comprehensive analysis through a structured technical review of the methods integrating UWB and MIMU sensors for accurate position estimation in the context of the application for 3D analysis of human movement. The methods used for integration are all summarized along with the accuracies that are reported in the reviewed articles. In addition, the gaps that are required to be addressed for making this system applicable for the 3D analysis of human movement are discussed.

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S., Suganthi. "Copper Cladding CPW Fed Single Layer Antenna for UWB Applications". International Journal of Psychosocial Rehabilitation 24, nr 5 (31.03.2020): 820—v. http://dx.doi.org/10.37200/ijpr/v24i5/pr201752.

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