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A novel method for radiating circular polarisation (CP) with a patch antenna without an external polariser has been investigated. It has the advantage of improving the axial ratio bandwidth for single feed CP antennas by using a thick air substrate and inverted patch configuration 相似文献
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A singly-fed, cross-aperture coupled microstrip antenna producing circular polarisation (CP) has been modelled using the transmission line method (TLM). The model provides an efficient technique to predict the input impedance of the structure with good accuracy when compared to measurement results 相似文献
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