Results 231 to 240 of about 8,876 (268)

On-body antenna with reconfigurable radiation pattern

2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio2014), 2014
On body antenna design is a challenging task due to the body being in the near-field of the antenna and the interaction between the two. The antenna should be designed to have a more application dependent gain pattern and to be less sensitive to near field effects of the body.
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The 3D approximation of antenna radiation patterns

Twelfth International Conference on Antennas and Propagation (ICAP 2003), 2003
The method of bilinear interpolation by cubic spline functions implemented in Matlab was utilized to calculate the full 3D approximation of antenna radiation patterns only from its two basic orthogonal cuts for an arbitrary antenna diagram. Only the type of radiation pattern has an influence on the approximation error. For axially symmetrical radiation
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Radiation pattern control in microstrip antennas

Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering, 2002
The far field radiation from a microstrip antenna is investigated numerically. Such an antenna has several electrical and geometrical parameters that can be used in shaping its radiation patterns. Among these the ground plane size and shape have the least effect on the antenna circuit parameters and may be used as the controlling parameters.
L. Shafai, S. Noghanian
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Plotting satellite antenna radiation patterns

IEEE Antennas and Propagation Magazine, 1991
Approaches for visualizing satellite antenna radiation patterns are presented. Gain-level contours drawn over a geographical map give the clearest quantitative information. A three-dimensional surface plot displays the qualitative shape of the radiation pattern more naturally.
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Radiation Pattern Synthesis for Broadcast Antennas

IEEE Transactions on Broadcasting, 1972
Two computer programs that can be used for the synthesis of radiation patterns of linear and planar arrays are described. The programs are listed in the Appendix and were written for the GE-645 computer, in Fortran IV language, and in a time-sharing mode.
J. Perini, M. Idselis
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Antenna-on-Chip radiation pattern characterization

2019
Millimeter-wave antenna measurements severely rely on the use of on-wafer probes. For an Antenna-on-chip (AoC), due to the tiny size of the chip (1~2 mm2), the radiation pattern will still be influenced when the probe tip is near the AoC under test (AUT).
Liu, Q., Johannsen, Ulf, van Beurden, Martijn C., Smolders, A. B.   +3 more
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Recording of dynamic antenna radiation patterns

IEEE Transactions on Antennas and Propagation, 1973
A concept is presented for recording antenna radiation patterns as functions of two parameters simultaneously. An implementation of the technique results in a significant savings in the measurement time required to document antenna performance as a function of the particular pair of parameters of interest.
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Lens measurement of antenna radiation patterns

1950
Miller, G. (Supervisor)
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Scanning synthetic radiation pattern antennas

Radioelectronics and Communications Systems, 2010
It is proposed conception of development of new type transmitting-receiving scanning antennas, which are called antennas with synthetic radiation pattern. It is based on application of movement of radiating (receiving) element together with synthesizing of radiation pattern (RP) by means of SAR for processing of recorded information about radiated and ...
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A Pattern-Reconfigurable Cylindrical Dielectric Resonator Antenna With Three Switchable Radiation Patterns

IEEE Transactions on Antennas and Propagation, 2023
Xiyao Liu, Kwok Wa Leung, Nan Yang
exaly