期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 64, 期 6, 页码 2094-2099出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2016.2545738
关键词
Antenna feed; antenna radiation pattern; dielectric resonator antennas (DRAs); omnidirectional antenna; periodic structures; plasmons
资金
- Agency for Science, Technology, and Research (ASTAR) through a SINGA scholarship
- National University of Singapore [R-263-000-A20-133, R-263-000-A45-112]
A spoof plasmon (SP)-based slow-wave feeding configuration is proposed, experimentally verified and exploited to excite the fundamental horizontally polarized mode of dielectric resonator antennas (DRAs). As an example, a cylindrical DRA operating at 3 GHz is fed by the proposed feeding structure. The simulation and measurement evidence the unique features of TE01 delta mode such as lower thickness-dependency of the resonant frequencies, superb miniaturization and ultra-compactness, and omnidirectional radiation for horizontally polarized waves. We anticipate that the ground-free SP-based feeding technique could be applied to effectively excite the more unusual modes of the isolated DRAs.
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