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Circularly Polarized Patch Antenna with Sector Radiation Pattern

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018
Recently, we have shown that by properly arranging two concentric patch antennas excited with different radiating modes, it is possible to generate an electromagnetic field with an anomalous polarization state, resembling the structure of a Mobius strip. In this contribution, we expand this finding by considering a single radiating structure consisting
Barbuto M.   +4 more
openaire   +2 more sources

Radiation pattern synthesis for a prolate spheroidal antenna

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017
An antenna is designed consisting of axial surface currents on a prolate spheroidal metallic surface. The dual orthogonality of the prolate spheroidal wave functions is utilized to synthesize a far field radiation pattern which best approximates a desired far field pattern for a given arbitrary superdirective ratio.
Marco D Poort, Piergiorgio LE Uslenghi
openaire   +1 more source

Radiation Pattern Control of Spherical Antenna

2006 3rd International Conference on Ultrawideband and Ultrashort Impulse Signals, 2006
The results of theoretical and experimental reseach of irradiation shift influence on radiation pattern are prepared. Scanning limits of antenna beam are determined. Some recommendations for scanning shperical antennas projecting are given.
M. I. Redin, Yu. N. Tywuk, S. Nesteruk
openaire   +1 more source

FSS based Radiation Pattern Decorrelator for MIMO Antenna

2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018
This work presents a novel technique to reduce the correlation coefficient between adjacent antenna elements in a multiple-input-multiple-output (MIMO) configuration. The proposed technique utilizes a phase-gradient frequency selective surface (FSS) as a superstrate in a Fabry-Perot cavity configuration, which tilts the beam of individual elements in ...
Tayyab Hassan   +2 more
openaire   +2 more sources

Prototype Antenna Radiation Pattern Measurement System

This prototype is a low-cost, open-source antenna measurement system based on Software-Defined Radio (SDR) and Raspberry Pi devices. It enables automated azimuthal and elevational rotation of an antenna using a stepper motor, and features synchronized signal data acquisition via the bladeRF platform. Signal processing and post-processing techniques are
openaire   +1 more source

Radiation-pattern control of Cassegrain antennas

IEE Proceedings H Microwaves, Antennas and Propagation, 1987
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