Results 261 to 270 of about 61,537 (311)
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Annular slot windshield antenna
IEEE Transactions on Vehicular Technology, 1998This paper discusses the development of a conformal automobile antenna for the AM/FM band. It is implemented by using a heat reduction metal film imbedded in the windshield to create an annular gap or slot at the circumference. Impedance characteristics and gain patterns are shown. The antenna system is effective, inexpensive and invisible.
E. Walton, R. Abou-Jaoude, M. Pekar
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ICMMT 4th International Conference on, Proceedings Microwave and Millimeter Wave Technology, 2004., 2005
The tapered microstrip transition with an overlapped coplanar stripline (CPS) as a feeding structure that effectively excited tapered slot antenna (TSA) geometry is proposed. This designed antenna has the merits such as wideband, simple balun feeding network, low profile compact size with fairly good antenna performances (VSWR, gain and radiation ...
null Jwo-Shiun Sun, null Guan-Yu Chen
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The tapered microstrip transition with an overlapped coplanar stripline (CPS) as a feeding structure that effectively excited tapered slot antenna (TSA) geometry is proposed. This designed antenna has the merits such as wideband, simple balun feeding network, low profile compact size with fairly good antenna performances (VSWR, gain and radiation ...
null Jwo-Shiun Sun, null Guan-Yu Chen
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2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016
A novel slot-coupled barbel antenna is designed and analyzed. A sensitivity analysis performed in order to improve the bandwidth, while the center frequency is kept constant.
K. L. Jorgensen, K. B. Jakobsen
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A novel slot-coupled barbel antenna is designed and analyzed. A sensitivity analysis performed in order to improve the bandwidth, while the center frequency is kept constant.
K. L. Jorgensen, K. B. Jakobsen
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Unidirectional miniaturized slot antennas
2008 IEEE Radio and Wireless Symposium, 2008A technique for designing unidirectional miniaturized slot antennas is presented in this paper. Our approach takes advantage of the simultaneous application of two different techniques used to reduce the lateral dimensions of a shallow cavity-backed slot antenna.
Al-Joumayly, Mudar, Behdad, Nader
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Microwave and Optical Technology Letters, 2000
A meander slot antenna fed by a strip line is proposed. The length of the slot meander antenna is less than one-eighth of the effective wavelength, while the radiation pattern is similar to that of conventional microstrip antennas. The resonant and radiation properties of the proposed antennas have been examined, and good agreement between simulated ...
H. Y. Wang +3 more
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A meander slot antenna fed by a strip line is proposed. The length of the slot meander antenna is less than one-eighth of the effective wavelength, while the radiation pattern is similar to that of conventional microstrip antennas. The resonant and radiation properties of the proposed antennas have been examined, and good agreement between simulated ...
H. Y. Wang +3 more
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Concentric annular slot antenna
Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014), 2014This paper focuses primarily on improving the gain of the circular microstrip patch antenna thanks to the presence of two concentric annular slots. The proposed antenna is excited by a coaxial probe and the design was aided by simulation through using CST resonance antenna at 4.38GHz with gain of 10.2dB and 12.1dB without and with slot respectively ...
Abdelkhalek Nasri +3 more
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Metasurface enhanced slot antennas
2016 10th European Conference on Antennas and Propagation (EuCAP), 2016This paper studies several metasurface enhanced slot antenna. The metasurface is placed on top of the slots, which allows extending their radiating aperture, leading to narrower E-Plane radiation pattern and larger gain. An example is given in which a slotted waveguide antenna gain increases 8 dB with respect to the conventional slotted waveguide ...
I. Ederra +3 more
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Radio Science, 1979
The concept of a natural slot antenna for very low frequency is discussed. It is suggested that a viable system needs to have an insulated cavity backing the slot aperture.
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The concept of a natural slot antenna for very low frequency is discussed. It is suggested that a viable system needs to have an insulated cavity backing the slot aperture.
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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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Electronics and Communications in Japan (Part I: Communications), 1983
AbstractOne of the self‐complementary antennas is axially symmetric and three‐dimensional. Since this antenna has an axially‐symmetrical antenna, made of a finite‐sized plate, it becomes a hard‐to‐control multibeam antenna. to obtain a single beam we remove one of the unipole arrays from a self‐complementary unipole‐slot array antenna made of two ...
Takayuki Ishizone +3 more
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AbstractOne of the self‐complementary antennas is axially symmetric and three‐dimensional. Since this antenna has an axially‐symmetrical antenna, made of a finite‐sized plate, it becomes a hard‐to‐control multibeam antenna. to obtain a single beam we remove one of the unipole arrays from a self‐complementary unipole‐slot array antenna made of two ...
Takayuki Ishizone +3 more
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