Electrically Small, Broadside Radiating Huygens Source Antenna Augmented With Internal Non-Foster Elements to Increase Its Bandwidth
AffiliationUniv Arizona, Dept Elect & Comp Engn
electrically small antennas (ESAs)
front-to-back ratio (FTBR)
Huygens source antenna
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CitationElectrically Small, Broadside Radiating Huygens Source Antenna Augmented With Internal Non-Foster Elements to Increase Its Bandwidth 2017, 16:712 IEEE Antennas and Wireless Propagation Letters
RightsCopyright © 2017, IEEE.
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AbstractA broadside radiating, linearly polarized, electrically small Huygens source antenna system that has a large impedance bandwidth is reported. The bandwidth performance is facilitated by embedding non-Foster components into the near-field resonant parasitic elements of this metamaterial-inspired antenna. High-quality and stable radiation performance characteristics are achieved over the entire operational bandwidth. When the ideal non-Foster components are introduced, the simulated impedance bandwidth witnesses approximately a 17-fold enhancement over the passive case. Within this -10-dB bandwidth, its maximum realized gain, radiation efficiency, and front-to-back ratio (FTBR) are, respectively, 4.00 dB, 88%, and 26.95 dB. When the anticipated actual negative impedance convertor circuits are incorporated, the impedance bandwidth still sustains more than a 10-fold enhancement. The peak realized gain, radiation efficiency, and FTBR values are, respectively, 3.74 dB, 80%, and 28.01 dB, which are very comparable to the ideal values.
VersionFinal published version
SponsorsNational Natural Science Foundation of China ; Graduate Scientific Research and Innovation Foundation of Chongqing, China [CYS16020]; Fundamental Research Funds for the Central Universities [106112015CDJZR165510]; China Postdoctoral Science Foundation [2016M590860]; Opening Subject of State Key Laboratory of Millimeter Waves [K201732]