Low-Profile, Electrically Small, Huygens Source Antenna With Pattern-Reconfigurability That Covers the Entire Azimuthal Plane
AffiliationUniv Arizona, Dept Elect & Comp Engn
KeywordsElectrically small antennas (ESAs)
Huygens source antennas
near-field resonant parasitic (NFRP) elements
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CitationLow-Profile, Electrically Small, Huygens Source Antenna With Pattern-Reconfigurability That Covers the Entire Azimuthal Plane 2017, 65 (3):1063 IEEE Transactions on Antennas and Propagation
Rights© 2017 IEEE.
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AbstractA pattern-reconfigurable, low-profile, efficient, electrically small, near-field resonant parasitic (NFRP), Huygens source antenna is presented. The design incorporates both electric and magnetic NFRP elements. The electric ones are made reconfigurable by the inclusion of a set of p-i-n diodes. By arranging these electric and magnetic NFRP elements properly, a set of three Huygens sources are attained, each covering a 120 degrees sector. Pattern reconfigurability is obtained by switching the diodes on or off; it encompasses the entire 360 degrees azimuth range. A prototype was fabricated and tested. The numerical and experimental studies are in good agreement. The experimental results indicate that in each of its instantaneous states at f(0) = 1.564 GHz, the antenna provides uniform peak realized gains, front-toback ratios, and radiation efficiencies, respectively, as high as 3.55 dBi, 17.5 dB, and 84.9%, even though it is electrically small: ka = 0.92, and low profile: 0.05 lambda(0).
VersionFinal accepted manuscript
SponsorsNational Natural Science Foundation of China ; Graduate Scientific Research and Innovation Foundation of Chongqing, China [CYB16047]; Chongqing Post-Doctoral Special Funding Project [xm2016022]; China Post-Doctoral Science Foundation [2016M590860]; opening subject of the State Key Laboratory of Millimeter Waves [K201732]; Australian Research Council [DP160102219]
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