Circularly polarised microstrip antenna array using proximitycoupled feed |
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| Authors: | Lo WK Chan CH Luk KM |
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| Affiliation: | Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon; |
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| Abstract: | A 2×2 circularly polarised (CP) microstrip antenna array using a proximity coupled feed and sequential rotation is described. As compared with a previously presented single-element circularly polarised microstrip antenna with a cross-slot, the new array achieves a much wider impedance bandwidth of 11.18% and has an axial ratio bandwidth of 4.1%. The return loss, radiation patterns and axial ratio of the antenna array were measured and are presented |
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