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Journal articles on the topic "Electronically steered antenna":
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Kumar, Raj, Pramendra Kumar Verma, and M. V. Kartikeyan. "A Wide Beam Printed Quadrifilar Helix based Circularly Polarised Radiating Element for Electronically Steered Antenna." Defence Science Journal 71, no. 1 (February 1, 2021): 66–70. http://dx.doi.org/10.14429/dsj.71.16100.
Wide beam and low axial ratio performance of printed quadrifilar antennas result in very attractive circularly polarised radiating element for wide scanned Electronically Steered Antenna. A compact printed quadrifilar Helix antenna (PQHA) has been designed and realised at S-Band frequency. Simulation and optimisation of designed antenna has been performed using ANSYS’s high frequency structure simulation (HFSS) software for its impedance, axial ratio (AR) performance and radiation characteristics. The developed circularly polarised antenna has 3-dB beam width of 130° and peak gain of 3.4dBic at 2.6 GHz. The developed antenna shows excellent AR performance over the frequency band as well as over the radiated beam. Half power axial ratio bandwidth of developed antenna is 27.4% (2.2 GHz - 2.9 GHz) while the impedance bandwidth is 32% (2.1 GHz - 2.9 GHz). Design has been validated through measured results. Designed wide band PQHA can be used as radiating element for electronically steered antenna for large beam steering application.
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Mathew, Jestin John, Nitish HS, Dr Jayavrinda V. V, and Dr Raghunandan S. "Implementation of Beam Steering using Phased Array Antennas." International Journal of Innovative Science and Research Technology 5, no. 6 (July 9, 2020): 1006–8. http://dx.doi.org/10.38124/ijisrt20jun716.
Beam steering is a phenomenon of varying the direction of the main lobe in the radiation pattern, so in radar systems it can be achieved by changing the relative phases of the antenna being implemented.But,some of the setbacks of implementing beam steering in mechanical antennas like microstrip antenna is that the directivity and, gain is low,and interference is very high.Whereas,in our project we have implemented beam steering using phased array antennas which has produced better results.So,an phased array antenna is electronically scanned antenna ,which produces a beam of radio waves that can be steered to different points based on our requirements by keeping the antenna stationary.Also,these type of antennas require less maintenance as compared to mechanical antennas
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Oppermann, Martin, and Ralf Rieger. "RF Modules (Tx–Rx) with Multifunctional MMICs." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2017, NOR (July 1, 2017): 1–5. http://dx.doi.org/10.4071/2017-nor-oppermann.
Abstract Next generation RF sensor modules for multifunction active electronically steered antenna (AESA) systems will need a combination of different operating modes, such as radar, electronic warfare (EW) functionalities and communications/datalinks within the same antenna frontend. They typically operate in C-Band, X-Band and Ku-Band and imply a bandwidth requirement of more than 10 GHz. For the realisation of modern active electronically steered antennas, the transmit/receive (T/R) modules have to match strict geometry demands. A major challenge for these future multifunction RF sensor modules is dictated by the half-wavelength antenna grid spacing, that limits the physical channel width to < 12 mm or even less, depending on the highest frequency of operation with accordant beam pointing requirements. A promising solution to overcome these geometry demands is the reduction of the total monolithic microwave integrated circuit (MMIC) chip area, achieved by integrating individual RF functionalities, which are commonly achieved through individual integrated circuits (ICs), into new multifunctional (MFC) MMICs. Various concepts, some of them already implemented, towards next generation RF sensor modules will be discussed and explained in this work.
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Aboualalaa, Mohamed, Hesham A. Mohamed, Thamer A. H. Alghamdi, and Moath Alathbah. "A Pattern Reconfigurable Antenna Using Eight-Dipole Configuration for Energy Harvesting Applications." Sensors 23, no. 20 (October 13, 2023): 8451. http://dx.doi.org/10.3390/s23208451.
A pattern reconfigurable antenna, composed of eight elements, is proposed for energy harvesting applications. Pattern reconfigurable antennas are a promising technique for harvesting from different wireless sources. The radiation pattern of the proposed antenna can be steered electronically using an RF switch matrix, covering an angle range from 0 to 360 degrees with a step size of 45 degrees. The proposed antenna primarily consists of an eight-dipole configuration that shares the same excitation. Each dipole is excited using a balun comprising a quarter-wavelength grounded stub and a quarter-wavelength open-circuit stub. The proposed antenna operates in the frequency range of 4.17 to 4.5 GHz, with an impedance bandwidth of 7.6%. By switching between the different switches, the antenna can be steered with a narrower rotational angle. In addition, the antenna can work in an omnidirectional mode when all switches are in the ON state simultaneously. The results demonstrate a good agreement between the numerical and experimental findings for the reflection coefficient and radiation characteristics of the proposed reconfigurable antenna.
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Bialkowski, M. E., S. T. Jellett, and R. S. Varnes. "Electronically steered antenna system for the australian mobilesat." IEE Proceedings - Microwaves, Antennas and Propagation 143, no. 4 (1996): 347. http://dx.doi.org/10.1049/ip-map:19960396.
Gonzalez, Manuel J., Ana Ruiz, Alberto Pellon, Jose Luis Flores, Palma Garcia, Keith Howland, Nigel Silverthorn, and Jaime Perez-de-Diego. "Enabling In-Flight Connectivity with the new Generation of Electronically Steered Antennas." IOP Conference Series: Materials Science and Engineering 1226, no. 1 (February 1, 2022): 012109. http://dx.doi.org/10.1088/1757-899x/1226/1/012109.
Abstract In-flight communication (IFC) services offered to passengers and crew are of great importance to the air transport sector. The improvement of the satellite capacity with High Throughput Satellites (HTS) in GEO and the advent of MEO and LEO constellations will support the forecast growth of the IFC market. Antenna equipment for satellite communications will need to address multiple scenarios from G2G (Gate-to-Gate) to multi-operation under GEO-MEO-LEO systems. Under these conditions, antennas with the ability to track multiple satellites and having superior performance and reliability will play a key role. Electronically steered antennas (ESA) have emerged as a viable solution in response to these demands. The EU-funded LESAF project proposes an ESA solution of reduced size and greater efficiency for the next generation of in-flight connectivity services. This will be managed through the requirements definition, system analysis, technology assessment, prototyping and validation of ESAs. The project has successfully passed the first milestone corresponding to requirements consolidation, baseline architecture definition and candidate technology trade-offs. Multi-beam Electronically Steered Antennas, separated apertures for both transmission and reception, a flexible modular approach coupled with planar multilayer integration and an advanced beamformer design are the basis for the proposed concept. The following project phase will be focused on the design and validation of an antenna demonstrator aimed at proving the superior added value of ESAs technological solution for the aviation industry needs.
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Kumar, Raj, Pramendra Kumar Verma, and Machavaram Venkateshwar Kartikeyan. "Wide scanned electronically steered conformal active phased array antenna for Ku-band SATCOM." International Journal of Microwave and Wireless Technologies 11, no. 4 (December 18, 2018): 376–81. http://dx.doi.org/10.1017/s1759078718001599.
AbstractThe paper describes the design and development of a low profile wide scanned conformal active 1 × 32 phased array antenna for Ku-band SATCOM applications. The realized antenna is diagonally polarized and covers full transmit frequency band (i.e. 13.75–14.5 GHz) of Ku band SATCOM. All the developed sub-systems of the antenna, i.e. conformal radiating array, conformal transmit module, manifold network, and beam steering unit are described. The VSWR of the antenna is better than 1.65 over the complete transmit frequency band. The antenna has the beam steering capability of ±60° in the array plane. Designed antenna is best suited for airborne applications, where antenna profile contributes considerable aero drag and RCS to the host platform.
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Yatongchai, Auychai, Peerasan Khamsalee, and Rangsan Wongsan. "EFFICIENCY IMPROVEMENT FOR ELECTRONICALLY STEERED DUAL-BEAM ANTENNA BY USING METAMATERIAL BASED RADOME." Suranaree Journal of Science and Technology 30, no. 4 (October 9, 2023): 010249(1–16). http://dx.doi.org/10.55766/sujst-2023-04-e0862.
Efficiency improvement for electronically steered dual-beam antenna by using metamaterial based radome are a PCB based circular-patch antenna design for dual beam steering is presented. This design employs the symmetrical slots inserted into the surface at eight angles of circular-patch antenna, thus, the original circular-patch antenna is reconfigured as consisting of eight small square-patches placed on eight angles and separated by such the slots. The beam steering property of this antenna can be implemented by controlling the on/off state of PIN diodes, which connected between each small square-patches and main patch at each angle of the structure. When the diode is on, the small square-patch becomes a part of radiating patch, whereas is off, the small square-patch becomes the parasitic element. The antenna is designed for the future high altitude platform such as, drone, Aircraft, missile, etc. That can be tracked or commanded from its control station within the given range and without disconnection. This antenna is investigated at 5.8 GHz of frequency and provided the bandwidth at 113 MHz, which is high enough for the unmanned aerial vehicles UAVs application, The antenna provides the gain of 7.13 dB without meta radome and switchable the dual-beam in eight different space quadrants for the azimuth plane by exciting forward bias with binary sequence to the PIN diodes. While it provides the constant tilted beam of 35° and angular width (3dB) 52.4° in the elevation plane and efficiency improvement for the antenna provides a gain of 10.18 dB with meta radome, approximately.
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Kumar, Raj, Pramendra Kumar Verma, Rajesh Roy, and Machavaram Venkata Kartikeyan. "POLARIZATION MATCHED RADIATING ARRAY FOR ELECTRONICALLY STEERED PHASED ARRAY ANTENNA." Progress In Electromagnetics Research Letters 79 (2018): 115–20. http://dx.doi.org/10.2528/pierl18092606.
Catalani, Alfredo, Franco Di Paolo, Marzia Migliorelli, Lino Russo, Giovanni Toso, and Piero Angeletti. "Ku Band Hemispherical Fully Electronic Antenna for Aircraft in Flight Entertainment." International Journal of Antennas and Propagation 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/230650.
The results obtained in the frame of the ESA activity “Advanced Antenna Concepts For Aircraft In Flight Entertainment” are presented. The aim of the activity consists in designing an active antenna able to guarantee the Ku band link between an aircraft and a geostationary satellite in order to provide in flight entertainment services. The transmit-receive antenna generates a single narrow beam to be steered electronically in a half sphere remaining compliant with respect to stringent requirements in terms of pattern shape, polarization alignment, EIRP, G/T, and using customized electronic devices. At the same time, the proposed solution should be competitive in terms of cost and complexity.
Dissertations / Theses on the topic "Electronically steered antenna":
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Fechine, Sette Elmo Luiz. "Circuits intégrés millimétriques en bande Ka pour une antenne à pointage électronique pour les télécommunications avec des satellites géostationnaires ou des constellations de satellites." Electronic Thesis or Diss., Limoges, 2024. http://www.theses.fr/2024LIMO0002.
Ce travail présente la conception de circuits actifs intégrés en vue d'une intégration dans une antenne à dépointage électronique pour les télécommunications par satellite en bande Ka. Tout d'abord, le manuscrit présente le contexte dans lequel se déroule l'étude, abordant les principaux concepts et caractéristiques de ce type d'antenne. Par la suite, deux blocs clés de la chaîne d’émission sont étudiés en détail et conçus : un amplificateur de puissance à gain variable et trois déphaseurs pilotables. Les circuits sont réalisés en utilisant deux technologies SiGe BiCMOS: BiCMOS9MW et SG13G2. Enfin, les résultats de simulation post-layout sont exposés et comparés aux spécifications du projet ainsi qu'à l'état de l'art This work presents the design of active integrated circuits intended for integration into an electronically steered antenna for Ka-band satellite communications. Firstly, the manuscript introduces the context of the study, discussing the main concepts and characteristics of this type of antenna. Subsequently, two key blocks of the transmission chain are studied in detail and designed: a variable gain power amplifier and three controllable phase shifters. The circuits are implemented using two SiGe BiCMOS technologies: BiCMOS9MW and SG13G2. Finally, the post-layout simulation results are presented and compared to the project specifications as well as the state of the art
Books on the topic "Electronically steered antenna":
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Brown, Arik D. Electronically steered arrays: MATLAB modeling and simulation. Boca Raton: CRC Press, 2013.
Book chapters on the topic "Electronically steered antenna":
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LACOMME, PHILIPPE, JEAN-PHILIPPE HARDANGE, JEAN-CLAUDE MARCHAIS, and ERIC NORMANT. "ELECTRONICALLY STEERED ANTENNAS." In Air and Spaceborne Radar Systems, 457–67. Elsevier, 2001. http://dx.doi.org/10.1016/b978-189112113-5.50028-0.
"Electronically-Steered Array Antennas (ESAs)." In Introduction to Airborne Radar, 473–80. Institution of Engineering and Technology, 1998. http://dx.doi.org/10.1049/sbra101e_ch37.
Conference papers on the topic "Electronically steered antenna":
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Ng, W., and G. Tangonan. "First demonstration of an optically steered dual-band microwave phased-array antenna." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.fee2.
The radiated beam of an electronically steered microwave phased- array antenna is steered by controlling the relative phase between successive radiating elements of the array. Fiber-optic delay lines offer a lightweight, compact solution to accomplish truetime-delay steering of these antennas. By using a fiber-guided lightwave as the carrier for microwave signals that drive the radiating elements, we realized an optical beam-forming network that was nondispersive over multiple microwave bands.
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Jaros, Ondrej, and Ladislav Beran. "Design of an Electronically Steered Antenna Array in the X band." In 2019 Conference on Microwave Techniques (COMITE). IEEE, 2019. http://dx.doi.org/10.1109/comite.2019.8733593.
Crews, Madison, and Lanche Grootboom. "Design of an Electronically Steered Phased Antenna Array for a CubeSat." In 2024 IEEE Radar Conference (RadarConf24). IEEE, 2024. http://dx.doi.org/10.1109/radarconf2458775.2024.10548419.
Buchanan, N. B., V. F. Fusco, and A. Pal. "Squinted elevation antenna for Ku band DVB satellite reception with electronically steered azimuth." In 2017 11th European Conference on Antennas and Propagation (EUCAP). IEEE, 2017. http://dx.doi.org/10.23919/eucap.2017.7928538.
Zhuang, L., D. Marpaung, M. Burla, R. Boot, A. Hulzinga, W. P. Beeker, P. van Dijk, and C. Roeloffzen. "Development of an integrated photonic beamformer for electronically-steered Ku-band phased array antenna." In 2011 IEEE Avionics, Fiber- Optics and Photonics Technology Conference (AVFOP). IEEE, 2011. http://dx.doi.org/10.1109/avfop.2011.6082117.
Uzun, Caglar, and Mubeccel Demirekler. "Stochastic dynamic programming based resource allocation for multi target tracking for electronically steered antenna radar." In 2015 23th Signal Processing and Communications Applications Conference (SIU). IEEE, 2015. http://dx.doi.org/10.1109/siu.2015.7129967.
Kumar, Raj, and M. V. Kartikeyan. "On the selection of Radiating Elements for Electronically Steered Phased Array Antenna for SATCOM Applications." In 2017 14th IEEE India Council International Conference (INDICON). IEEE, 2017. http://dx.doi.org/10.1109/indicon.2017.8487557.
Delaune, David, Josaphat Tetuko Sri Sumantyo, Toshimitsu Tanaka, Teruo Onishi, and Koichi Ito. "Simple Electronically-steered On-board Stacked-type Dual-band Patch Array Antenna for Engineering Test Satellite VIII Applications." In 33rd European Microwave Conference, 2003. IEEE, 2003. http://dx.doi.org/10.1109/euma.2003.341004.
Delaune, D., J. T. Sri Sumantyo, T. Tanaka, T. Onishi, and K. Ito. "Simple electronically-steered on-board stack-type dual-band patch array antenna for engineering test satellite VIII applications." In 33rd European Microwave Conference Proceedings. IEEE, 2003. http://dx.doi.org/10.1109/eumc.2003.177531.
Gautier, F. "Future electronically steered antennas for Airborne Radar." In IEE Workshop. Future of Radar in the UK and Europe. IEE, 1999. http://dx.doi.org/10.1049/ic:19990856.
