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|Title:||A frequency- and polarization-reconfigurable circular cavity antenna|
|Citation:||IEEE Antennas and Wireless Propagation Letters, 2017; 16:999-1002|
|Nghia Nguyen-Trong, Andrew Piotrowski, Leonard Hall and Christophe Fumeaux|
|Abstract:||The principle and experimental validation of a frequency- and polarization-reconfigurable antenna using switching PIN diodes is presented in this letter. The antenna is based on a center-fed circular cavity with switchable shorting vias along its outer edge. Turning a set of shorting vias on on one side and off on the other side creates a radiating slot with controllable length and location along the side wall of the cavity that results in different antenna resonance frequencies and polarizations. As a proof of concept, a particular realization of the antenna is designed that can change the linear polarization in six different angles and at five discrete frequencies (spanning more than one octave). Based on the proposed concept, quasi-continuous frequency- and polarization-reconfiguration is feasible using individual control of a large number of switching devices.|
|Keywords:||Cavity antennas; frequency-reconfigurable antennas; polarization-reconfigurable antennas; planar-inverted Fantenna (PIFA); reconfigurable antennas|
|Rights:||© 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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