摘要
This brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89%.
源语言 | 英语 |
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页(从-至) | 1106-1110 |
页数 | 5 |
期刊 | IEEE Transactions on Circuits and Systems II: Express Briefs |
卷 | 71 |
期 | 3 |
DOI | |
出版状态 | 已出版 - 1 3月 2024 |