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Cavity-backed annular conical antenna
2017 11th European Conference on Antennas and Propagation (EUCAP), 2017This paper presents a full-wave solution for cavity-backed annular conical antennas. The analysis is based on equivalence principle and Method of Moments for modeling the equivalent surface magnetic currents. Numerical results for input impedance and gain patterns are shown.
V. Sabino, O. M. C. Pereira-Filho
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Design of cavity-backed spiral antennas
Proceedings of 2012 5th Global Symposium on Millimeter-Waves, 2012In this paper, the design procedure of the 2–18 GHz and the 18–40 GHz cavity-backed spiral antenna is described. By varying the antenna parameters the VSWR and the axial ratio characteristics of the antenna are investigated. For the 2–18 GHz spiral antenna, the solid absorber and the Marchand balun are applied.
Cheol Min Seong, Dong Chul Park
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Efficient analysis of cavity backed antennas
2006 First European Conference on Antennas and Propagation, 2006The efficient analysis of shielded environments, and more specifically rectangular cavities coupled to radiating elements is treated in this paper. The technique presented uses an MPIE/EFIE formulation for the part located outside of the cavity (antenna for instance), where full 3-D conductors and finite dielectrics embedded in a traditional ...
Nunez, F. +3 more
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A cavity-backed multifilar-curl antenna
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2004A multifilar-curl antenna is numerically analyzed in the presence of a flat circular reflector and a circular cavity. Wire grid method is used to simulate the conducting surfaces of the cavity. The current distribution along the antenna structure is determined by using the moment method.
S.H. Zalnud-Deen +3 more
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IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2004
A novel cavity-backed slot antenna is proposed and experimentally studied. The antenna consists of a slot cut in a ground plane and backed by shorting strips, forming a backing cavity. Preliminary results based on a prototype show a 2:1 VSWR input impedance bandwidth of more than 20%, which can be further enhanced.
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A novel cavity-backed slot antenna is proposed and experimentally studied. The antenna consists of a slot cut in a ground plane and backed by shorting strips, forming a backing cavity. Preliminary results based on a prototype show a 2:1 VSWR input impedance bandwidth of more than 20%, which can be further enhanced.
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Cavity-backed Vivaldi array antenna
2016 10th European Conference on Antennas and Propagation (EuCAP), 2016A development of Vivaldi antenna array fully recessed inside a metallic cavity is investigated. The antenna is first designed in free space with reflection coefficient < −10dB and a consistent gain better than 4 dB over 2 – 7 GHz bandwidth. The size of the cavity is varied and its interaction with the antenna is analyzed.
Elie G. Tianang +2 more
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A cavity backed rectangular patch antenna
6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003, 2003Cavity backing of the conventional rectangular microstrip antenna is being proposed. The proposed antennas have been simulated. An input impedance of 71 % for VSWR /spl les/ 2.00 has been obtained from the proposed antenna. Results obtained for the cavity backed and without cavity backed antenna has been compared.
P.K. Singhal, S. Banerjee
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Tenth International Conference on Antennas and Propagation (ICAP), 1997
Several configurations of cavity-backed patch antennas are described and compared. Theoretical studies were accompanied with both impedance matching and radiation pattern measurements. The main goal of the project is to achieve smaller dimensions with a sufficient frequency bandwidth of microstrip low profile antennas.
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Several configurations of cavity-backed patch antennas are described and compared. Theoretical studies were accompanied with both impedance matching and radiation pattern measurements. The main goal of the project is to achieve smaller dimensions with a sufficient frequency bandwidth of microstrip low profile antennas.
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Cavity-backed folded-slot antenna
2010 IEEE Antennas and Propagation Society International Symposium, 2010Folded slot antennas (FSAs) offer some of the attractive characteristics of the slot antennas, such as small size, light weight, wider bandwidth and that can be flush-mounted on surfaces. They also present an input impedance about four times lower than the slot antenna at the first useful resonance (f 0 ) [1], facilitating the matching to 50 Ω and ...
Maria F Córdoba-Erazo +1 more
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A cavity-backed quadrifilar-curl antenna
Proceedings of the Twentieth National Radio Science Conference (NRSC'2003) (IEEE Cat. No.03EX665), 2003A quadrifilar-curl antenna is numerically analyzed in the presence of a flat circular reflector and a circular cavity. Wire grid method is used to simulate the conducting surfaces. The current distribution along the antenna structure is determined by using the moment method.
S.H. Zainud-Deen +3 more
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