Dual-Polarized Broad-Band Microstrip Antennas Fed by Proximity Coupling

Steven Gao, Alistair Sambell

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)


This paper presents a novel broad-band dual-polarized microstrip patch antenna, which is fed by proximity coupling. The microstrip line with slotted ground plane is used at two ports to feed the patch antenna. By using only one patch, the prototype antenna yields a bandwidth of 22% and 21.3% at the input port 1 and 2, respectively. The isolation between two input ports is below -34 dB across the bandwidth. Good broadside radiation patterns are observed, and the cross-polar levels are below -21 dB at both E and H planes. Due to its simple structure, it is easy to form arrays by using this antenna as an element.

Original languageEnglish
Article number1377631
Pages (from-to)526-530
Number of pages5
JournalIEEE Transactions on Antennas and Propagation
Issue number1 Part II
Publication statusPublished - 1 Jan 2005
Externally publishedYes

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