Results 261 to 270 of about 21,050 (313)
Some of the next articles are maybe not open access.
Planar Triorthogonal Diversity Slot Antenna
IEEE Transactions on Antennas and Propagation, 2017This communication proposes an easily manufacturable multifunction multiport planar slot antenna with triorthogonal pattern diversity. Distinct radiation patterns are emitted via a common square radiative slot by exploiting three orthogonal modes. These slot modes consist of a magnetic current loop mode with an omnidirectional linearly polarized (OLP ...
Nicholas P. Lawrence +2 more
openaire +3 more sources
33rd European Microwave Conference, 2003, 2003
A cavity-backed slot antenna is proposed. The antenna is theoretically and experimentally studied. The antenna consists of a slot cut in a ground plane and backed by shorting strips, forming a backing cavity. Experimental studies of the antenna show a 2:1 VSWR input impedance bandwidth of more than 20%.
openaire +1 more source
A cavity-backed slot antenna is proposed. The antenna is theoretically and experimentally studied. The antenna consists of a slot cut in a ground plane and backed by shorting strips, forming a backing cavity. Experimental studies of the antenna show a 2:1 VSWR input impedance bandwidth of more than 20%.
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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.
openaire +1 more source
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.
openaire +1 more source