Ultra-wideband circularly-polarized patch antenna

An ultra-wideband circularly-polarized (CP) microstrip antenna is presented with the introduction of one wideband 90deg feed network. The CP patch antenna experimentally offers a 10-dB impedance bandwidth of 71.7%, 3-dB axial-ratio bandwidth of 81.6% and a gain bandwidth of 52.2% with its highest gain of 8.1 dBi at 1.8 GHz.

Related Organizations

Agency for Science, Technology and Research
Singapore
Institute for Infocomm Research
Singapore

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