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Cylindrical-rectangular microstrip patch antenna for circular polarization

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2 Author(s)
Kin-Lu Wong ; Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan ; Shyh-Yeong Ke

The circular polarization condition for a rectangular microstrip patch antenna on a thin cylindrical substrate is investigated. The theoretical study is based on the modal-expansion theory, which is valid for the thin-substrate case. Numerical results for the aspect ratio of the cylindrical-rectangular patch, the optimal feed point for minimum voltage standing wave ratio and the 3-dB bandwidth for circularly polarized radiation are analyzed. Effects of the curvature on the circular polarization condition are also discussed

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Antennas and Propagation, IEEE Transactions on  (Volume:41 ,  Issue: 2 )