Letteratura scientifica selezionata sul tema "Slot antenna arrays"
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Articoli di riviste sul tema "Slot antenna arrays"
Trinidad Garcia, Elvis, Ruben Ortega e Saad Tabet. "Rectangular Slot Array Antenna". Applied Computational Electromagnetics Society 35, n. 11 (3 febbraio 2021): 1302–3. http://dx.doi.org/10.47037/2020.aces.j.351120.
Testo completoPotgieter, L., J. Joubert e J. W. Odendaal. "Design of center-fed printed planar slot arrays". International Journal of Microwave and Wireless Technologies 9, n. 2 (9 dicembre 2015): 453–61. http://dx.doi.org/10.1017/s1759078715001701.
Testo completoChin, Kuo-Sheng, Chi-Sheng Wu, Chien-Lung Shen e Kun-Chuan Tsai. "Designs of Textile Antenna Arrays for Smart Clothing Applications". Autex Research Journal 18, n. 3 (1 settembre 2018): 295–307. http://dx.doi.org/10.1515/aut-2018-0002.
Testo completoFallah, Mahmoud, e Mohammad Khalaj-Amirhosseini. "Meta-waveguide analysis and implementation for using as a slot array antenna". International Journal of Microwave and Wireless Technologies 12, n. 2 (11 settembre 2019): 138–47. http://dx.doi.org/10.1017/s1759078719001132.
Testo completoLee, Doojin. "Study of metasurface coated bowtie antenna to decouple closely coupled arrays". AIP Advances 12, n. 11 (1 novembre 2022): 115108. http://dx.doi.org/10.1063/5.0107498.
Testo completoJafargholi, Amir, Manouchehr Kamyab e Mehdi Veysi. "PMC-Based Waveguide-Fed Slot Array". ISRN Communications and Networking 2011 (21 settembre 2011): 1–5. http://dx.doi.org/10.5402/2011/941070.
Testo completoMohammadi-Asl, Saeed, Javad Nourinia, Changiz Ghobadi e Maryam Majidzadeh. "Broadband circularly polarized slot antenna arrays using linked elliptical slots forC- andX-band applications". International Journal of Microwave and Wireless Technologies 10, n. 3 (aprile 2018): 328–35. http://dx.doi.org/10.1017/s1759078717000812.
Testo completoMilijić, Marija, e Branka Jokanović. "Advanced high-gain slot antenna arrays for 5G and radar applications". Telfor Journal 13, n. 1 (2021): 29–34. http://dx.doi.org/10.5937/telfor2101029m.
Testo completoMohd Aminudin Jamlos, Nurasma Husna Mohd Sabri, Mohd Faizal Jamlos, Wan Azani Mustafa, Syed Zulkarnain Syed Idrus, Mohamad Nur Khairul Hafizi Rohani, Khairul Najmy Abdul Rani e Mohd AL Hafiz Mohd Nawi. "5.8 GHz Circularly Polarized Rectangular Microstrip Antenna Arrays simulation for Point-to-Point Application". Journal of Advanced Research in Applied Sciences and Engineering Technology 28, n. 3 (30 novembre 2022): 209–20. http://dx.doi.org/10.37934/araset.28.3.209220.
Testo completoLin, Jia-Hong, Wen-Hui Shen, Zhi-Dong Shi e Shun-Shi Zhong. "Circularly Polarized Dielectric Resonator Antenna Arrays with Fractal Cross-Slot-Coupled DRA Elements". International Journal of Antennas and Propagation 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/8160768.
Testo completoTesi sul tema "Slot antenna arrays"
Voigt, Dewald. "Computational investigation of a crossed slot cavity-backed array antenna". Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2659.
Testo completoThis thesis investigates a computational model of an electronically steered antenna array. It focuses on a simple element comprising an S-shaped, crossed, cylindrical cavity-backed slot antenna. An unusual aspect of the element is the addition of a top hat, which contributes to the low scanning ability of the array. The objective was to confirm this contribution of the top hat. During the investigation, the computation code Feko was validated for slot analysis through consideration of the basic properties of a dipole and slot and how they related to each other. Various alternative models were evaluated, before a final accurate model was modelled in Feko, to find possible equivalent models. The final model, which implemented the use of Feko as release 5, was the only one that achieved successful results. The results showed that the top hat does play an important role in the steering of the beam. The mechanism through which this occurs was identified. The results that where obtained indicated that there may be more effective elements than the cylindrical element and the identification of this is proposed as a field for further study.
Mustafa, Incebacak. "Design Of Series-fed Printed Slot Antenna Arrays Excited By Microstrip Lines". Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612447/index.pdf.
Testo completot require high power levels with having advantage of easy integration with microwave front-end circuitry. In this thesis, design and analysis of microstrip line fed slot antenna arrays are investigated. First an equivalent circuit model that ignores mutual coupling effects between slots is studied. A 6-element array is designed by using this equivalent circuit model. From the measurement and electromagnetic simulation results of this array, it is concluded that mutual coupling effects should be considered in order to achieve a successful design that meets the design specifications related to the main beam direction and sidelobe levels of the antenna. Next, an improved equivalent circuit model proposed for stripline fed slot antenna arrays is studied. It is observed that, the mutual coupling effects are incorporated into the equivalent model through the utilization of active impedance concept. Finally, the design equations proposed in the improved equivalent circuit model are derived for the microstrip line fed slot antenna array structure. To demonstrate the validity and the accuracy of the derived design equations, results obtained by the proposed analysis method are compared with simulation and measurement results. It is concluded that the proposed method successfully predicts the radiation pattern of the array by including the mutual coupling effects.
Öjefors, Erik. "Integrated Antennas : Monolithic and Hybrid Approaches". Doctoral thesis, Uppsala University, Department of Engineering Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7142.
Testo completoThis thesis considers integration of antennas and active electronics manufactured on the same substrate. The main topic is on-chip antennas for commercial silicon processes, but hybrid integration using printed circuit board technology is also addressed.
The possible use of micromachining techniques as a means of reducing substrate losses of antennas manufactured on low resistivity silicon wafers is investigated. Compact dipole, loop, and inverted-F antennas for the 20-40 GHz frequency range are designed, implemented, and characterized. The results show significantly improved antenna efficiency when micromachining is used as a post-processing step for on-chip antennas manufactured in silicon technology.
High resistivity wafers are used in a commercial silicon germanium technology to improve the efficiency of dipole antennas realized using the available circuit metal layers in the process. Monolithically integrated 24 GHz receivers with on-chip antennas are designed and evaluated with regard to antenna and system performance. No noticeable degradation of the receiver performance caused by cross talk between the antenna and the integrated circuit is observed.
For low frequency antenna arrays, such as base station antennas, hybrid integration of active devices within the antenna aperture is treated. A compact varactor based phase shifter for traveling wave antenna applications is proposed and evaluated. Electrically steerable traveling wave patch antenna arrays, with the phase shifters implemented in the same conductor layer as the radiating elements, are designed and manufactured in microstrip technology. It is experimentally verified that the radiation from the feed network and phase shifters in the proposed antenna configuration is small.
Zivanovic, Bojana. "Series-Fed Aperture-Coupled Microstrip Antennas and Arrays". Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4425.
Testo completoZhang, Shuai. "Investigating and Enhancing Performance of Multiple Antenna Systems in Compact MIMO/Diversity Terminals". Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116402.
Testo completoQC 20130121
EU Erasmus Mundus External Cooperation Window TANDEM
Farias, Roger Lorenzoni. "Antenas de microfita dupla-faixa para aplicações em estações rádio-base de telefonia móvel celular". Universidade Federal do Pampa, 2014. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/250.
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Neste trabalho, são apresentadas diferentes técnicas que possibilitam a obtenção de característica dupla-faixa para antenas de microfita especificamente voltadas para aplicações em estações rádio-base de telefonia móvel celular no Brasil. As faixas de frequência de interesse encontram-se no intervalo de 0,824 GHz a 0,960 GHz para a banda inferior e 1,710 GHz a 2,165 GHz para a banda superior. Além de atender as especificações técnicas de faixa de passagem, devem ser atendidos os requisitos de coeficiente de reflexão, polarização, ganho, largura de feixe de irradiação e impedância de entrada na faixa de interesse. Primeiramente, para obtenção de antenas de microfita com característica multibanda, descreve-se a técnica em que são dispostas fendas nos elementos irradiadores, onde são estudadas três topologias de antenas, explicando-se os princípios de funcionamento e destacando-se as particularidades de cada geometria. As três antenas são analisadas e projetadas com o auxílio do software comercial de simulação eletromagnética Ansoft Designer ® , visando levantar os parâmetros elétricos através de diversos estudos paramétricos em função da variação das dimensões das antenas para compreender melhor o comportamento de cada estrutura simulada. A antena com elemento irradiador em forma de H foi a única que cumpriu os requisitos em termos de faixa de passagem e diagramas de irradiação para operação em sistemas de telefonia móvel celular. No entanto, esta geometria resultou em dimensões físicas consideráveis, pois necessita da utilização de múltiplas camadas dielétricas, acarretando em um protótipo de volume considerável e de elevado custo de produção. Outra técnica estudada foi a sobreposição de elementos irradiadores, porém a mesma não é investigada detalhadamente em função de o custo de produção da antena ser mais elevado em comparação a topologias coplanares. Em seguida, uma técnica com irradiadores em fenda anelar e dupla alimentação é proposta. A antena é projetada considerando-se duas portas independentes, uma para cada banda de operação, formando uma antena de dois acessos altamente isolados. Simulações com o software HFSS TM mostraram que é possível satisfazer as especificações para operação em estações rádio-base de telefonia móvel celular. A grande vantagem desta estrutura é a possibilidade de utilização de apenas um laminado de micro-ondas, o que reduz o custo de produção em comparação a outras topologias. Protótipos foram construídos e caracterizados experimentalmente para validar o projeto realizado no simulador eletromagnético. Constatou-se a presença de discrepâncias entre os resultados simulados e medidos. Após simulações paramétricas, verificou-se que o processo de construção alterou a geometria do protótipo em relação ao modelo de simulação. Após a inclusão das imperfeições do processo construtivo no modelo, foi possível estimar as mudanças necessárias no protótipo. Após os devidos ajustes realizados em bancada, os resultados medidos exibiram boa concordância com a previsão teórica. Por fim, realizou-se um estudo de viabilidade da utilização da antena em fenda anelar dupla-faixa para composição de uma rede de antenas para estações rádio-base. A análise teve como principal objetivo verificar a possibilidade de síntese de diagramas de irradiação em forma de cossecante ao quadrado em ambas as bandas de operação. Excelente resultado foi obtido para a banda inferior, enquanto que algumas limitações foram encontradas na banda superior.
In this work we present different techniques for achieving the dual-band feature for microstrip antennas aimed to be used in the mobile communication base stations of Brazil. The focused frequency range for lower and higher bands is in the 0.824-0.960 GHz and 1.710-2.165 GHz intervals, respectively. In addition to comply with the technical specifications, the solution is also supposed to meet the requirements of return loss, polarization, gain, beamwidth radiation and input impedance in the focused frequency range. Initially, in order to obtain microstrip antennas with dual-band characteristic, we describe the technique in which slots are placed in the irradiating elements. Three antenna topologies are analyzed in its operation principles, emphasizing the particularities of each geometry. The antennas are designed with support of Ansoft Designer ® , a commercial software that simulates electromagnetic features, in order to find out the electrical parameters through parametric studies and to better understand the behavior of each simulated structure. These studies considered the variation in the dimensions of antennas. The H-shaped microstrip antenna was the only one able to fulfill the requirements of bandwidth and irradiation diagrams for operation in mobile communication. However, this geometry originated an antenna of considerable physical dimensions, because it requires the use of multiple dielectric layers, resulting in a prototype of considerable volume and high production cost. Another technique studied was the stacking of irradiating elements. However it isn’t investigated in detail because of the production cost of the antenna, which is higher than the ones of coplanar topologies. After all that, we propose a technique based in annular-slot antennas and double feed. The antenna is designed considering two independent ports, one for each band of operation, making an antenna of two highly insulated accesses. Simulations by the HFSS TM software have shown that it’s possible to comply with the specifications for operation in base stations of the mobile communication. The biggest advantage of this structure over other topologies is that it may be made of only one microwave laminate, reducing the production cost. Prototypes were built and measured to validate the design in the electromagnetic simulator. It was noted the discrepancies between the simulated and measured results. After running parametric simulations, we found out that the building process of the prototype changed the geometry of the simulation model. We included these imperfections in the model and it was possible to estimate the necessary changes in the prototype. After inclusion of the adjustments, the measured results behaved just alike the theoretical prediction. Finally, we’ve done a feasibility study on the use of the dual-band annular slot antenna for making an array of antennas for base stations. The study aimed to verify the suitability of synthetizing squared-cosecant shaped pattern in both operation bands. We got excellent results for the lower band, although some limitations were found for the higher band.
Ng, Kwong-Tai. "Admittance properties of a slot array with parasitic wire arrays in a stratified medium /". The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487259580262744.
Testo completoLundin, Andreas. "Interference and Energy Conservation in Phased Antenna Arrays and Young’s Double Slit Experiment". Thesis, Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-188035.
Testo completoMcknight, James W. "A cavity-backed coplanar waveguide slot antenna array". [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003299.
Testo completoGrbic, Anthony. "A novel leaky millimeter-wave linear slot antenna array". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58792.pdf.
Testo completoLibri sul tema "Slot antenna arrays"
Q, Lee Richard, e United States. National Aeronautics and Space Administration., a cura di. Linearly tapered slot antenna impedance characteristics. [Washington, DC]: National Aeronautics and Space Administration, 1995.
Cerca il testo completoSimons, Rainee. Space power amplification with active linearly tapered slot antenna array. [Washington, DC: National Aeronautics and Space Administration, 1993.
Cerca il testo completoQ, Lee Richard, e United States. National Aeronautics and Space Administration., a cura di. Space power amplification with active linearly tapered slot antenna array. [Washington, DC: National Aeronautics and Space Administration, 1993.
Cerca il testo completoSimons, Rainee N. Spatial frequency multiplier with active linearly tapered slot antenna array. [Washington, DC: National Aeronautics and Space Administration, 1994.
Cerca il testo completoLangley, Jeremy David Scott. Wideband phased arrays using tapered slot antennas. Birmingham: University of Birmingham, 1996.
Cerca il testo completoSangster, Alan J. Compact Slot Array Antennas for Wireless Communications. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01753-8.
Testo completoN, Simons Rainee, e United States. National Aeronautics and Space Administration., a cura di. Linearly tapered slot antenna circular array for mobile communications. [Washington, DC]: National Aeronautics and Space Administration, 1993.
Cerca il testo completoGrbic, Anthony. A novel leaky millimeter-wave linear slot antenna array. Ottawa: National Library of Canada, 2001.
Cerca il testo completoSimons, Rainee N. Characteristics of linearly tapered slot antenna with CPW feed on high resistivity silcon. [Washington, DC: National Aeronautics and Space Administration, 1993.
Cerca il testo completoSimons, Rainee. Characteristics of linearly tapered slot antenna with CPW feed on high resistivity silcon. [Washington, DC: National Aeronautics and Space Administration, 1993.
Cerca il testo completoCapitoli di libri sul tema "Slot antenna arrays"
Elliott, Robert S. "The Design of Waveguide-Fed Slot Arrays". In Antenna Handbook, 805–42. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-6459-1_12.
Testo completoNesterenko, Mikhail V., Victor A. Katrich, Yuriy M. Penkin, Sergey L. Berdnik e Oleksandr M. Dumin. "Combined Vibrator-Slot Radiators in Antenna Arrays". In Lecture Notes in Electrical Engineering, 257–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60177-5_8.
Testo completoRaj, Valluri Dhana, A. M. Prasad e G. M. V. Prsad. "Investigation of Broadband Characteristics of Circularly Polarized Spidron Fractal Slot Antenna Arrays for Wireless Applications". In Advances in Intelligent Systems and Computing, 183–200. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2731-1_17.
Testo completoHirokawa, Jiro, e Miao Zhang. "Waveguide Slot Array Antennas". In Handbook of Antenna Technologies, 1389–413. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-4560-44-3_51.
Testo completoHirokawa, Jiro, e Miao Zhang. "Waveguide Slot Array Antennas". In Handbook of Antenna Technologies, 1–21. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-4560-75-7_51-1.
Testo completoGeng, Junping. "Principles of Omnidirectional CP Slot Array Antenna". In Omnidirectional Slots Antenna, 35–65. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9089-4_3.
Testo completoGeng, Junping. "Basic Theory of Omnidirectional Antenna and Slot Array". In Omnidirectional Slots Antenna, 19–34. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9089-4_2.
Testo completoGeng, Junping. "Principles of Omnidirectional Dual-CP Slot Array Antenna". In Omnidirectional Slots Antenna, 67–77. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9089-4_4.
Testo completoAli, Sayyed Arif, Mohd Wajid e Muhammad Shah Alam. "SIW Slot Antenna Array for 5G Applications". In Lecture Notes in Electrical Engineering, 25–35. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0312-0_4.
Testo completoSchaubert, Daniel H. "Wide-Bandwidth Radiation from Arrays of Endfire Tapered Slot Antennas". In Ultra-Wideband, Short-Pulse Electromagnetics, 157–65. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2870-8_19.
Testo completoAtti di convegni sul tema "Slot antenna arrays"
Matin, M. A. "Dual frequency microstrip antenna with V slot". In Wideband and Multi-Band Antennas and Arrays. IEE, 2005. http://dx.doi.org/10.1049/ic:20050309.
Testo completoLi, P. "Planar circular slot antenna for ultra-wideband applications". In Wideband and Multi-Band Antennas and Arrays. IEE, 2005. http://dx.doi.org/10.1049/ic:20050303.
Testo completoKaloshin, V. A., e Le Doan Trinh. "Multi-Beam Trifocal Waveguide Slot Antenna Arrays". In 2020 Systems of Signals Generating and Processing in the Field of on Board Communications. IEEE, 2020. http://dx.doi.org/10.1109/ieeeconf48371.2020.9078579.
Testo completoPenkin, Yury, Victor Katrich, Mikhail Nesterenko e Sergey Berdnik. "Impedance Synthesis of Flat Slot Antenna Arrays". In 2020 IEEE Ukrainian Microwave Week (UkrMW). IEEE, 2020. http://dx.doi.org/10.1109/ukrmw49653.2020.9252645.
Testo completoChan, K. C. L. "Slot-inserted semi-circular disc antenna for wideband communications". In Wideband and Multi-Band Antennas and Arrays. IEE, 2005. http://dx.doi.org/10.1049/ic:20050286.
Testo completoDubrovka, F. F., S. Y. Martyniuk, D. O. Vasylenko e O. S. Postulga. "Ultrawideband tapered slot, waveguide and dipole antenna arrays". In 2017 XI International Conference on Antenna Theory and Techniques (ICATT). IEEE, 2017. http://dx.doi.org/10.1109/icatt.2017.7972578.
Testo completoMa, Li, Muyang Li, Peng Chen, Hui Zhang e Xutao Yu. "Design of Low Sidelobe Waveguide Slot Antenna Arrays". In 2020 13th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT). IEEE, 2020. http://dx.doi.org/10.1109/ucmmt49983.2020.9296005.
Testo completoJohansson, J. F., K. S. Yngvesson e E. L. Kollberg. "Model Experiments With Slot Antenna Arrays For Imaging". In 1985 International Technical Symposium/Europe, a cura di Erik L. Kollberg. SPIE, 1986. http://dx.doi.org/10.1117/12.952330.
Testo completoBaca, Loretta J., e John G. McInerney. "A High-speed Microwave Antenna Suitable for Optoelectronic Integration". In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.fnn5.
Testo completoSharawi, Mohammad S., e Muhammad Ikram. "Slot-based connected antenna arrays for 5G mobile terminals". In 2018 International Workshop on Antenna Technology (iWAT). IEEE, 2018. http://dx.doi.org/10.1109/iwat.2018.8379256.
Testo completoRapporti di organizzazioni sul tema "Slot antenna arrays"
Kisliuk, Moshe, Bernard Steinberg e William Whistler. Conformal Microstrip Slot Antenna and Antenna Array. Fort Belvoir, VA: Defense Technical Information Center, settembre 1986. http://dx.doi.org/10.21236/ada174370.
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