Circularly polarised patch antenna array using proximity-coupledL-strip line feed |
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| Authors: | Lo WK Chan CH Luk KM |
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| Affiliation: | Wireless Commun. Res. Centr, City Univ. of Hong Kong, Kowloon; |
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| Abstract: | A microstrip antenna array for circular polarisation (CP) using a proximity L-strip line feed is proposed and experimentally investigated. By placing a cross-slot with unequal slot lengths on the circular patch, circular polarisation can be excited. Also, a sequential rotation technique is adopted for the design of this CP antenna array to widen the bandwidth. The impedance and axial ratio bandwidth values are 78 and 16.15%, respectively. The boresight axial ratio is 0.4 dB at 1.91 GHz |
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