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Broadband circularly polarised slot loop antenna fed by three-stub hybrid coupler

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2 Author(s)
X. M. Qing ; Centre for Wireless Commun., Singapore ; Y. W. M. Chia

A microstrip slot loop antenna with a three-stub hybrid coupler feed network is proposed for generating broadband circular polarisation. A very broad bandwidth of 55.6% at 2:1 VSWR and 22.2% bandwidth for <3 dB axial ratio was achieved

Published in:

Electronics Letters  (Volume:35 ,  Issue: 15 )