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A geometry centre feeding miniaturized microstrip rectangular ring antenna is designed for wide-angle scanning phased array antenna in this paper. With the proposed design, the peak gain of the antenna array only drops 3.4 dB when the main beam steers to 60°, which is slightly different with the theory value (3 dB) and it means the proposed antenna has excellent performance for wide-angle scanning...
A dual-band circularly polarized antenna with advantages of agile frequency configuration, compact size, and light weight is proposed in this letter. The antenna size can be reduced by employing a rectangular ring radiator structure. Simultaneously, the operating frequency of the proposed antenna can be readily tuned by properly stacking the ring radiators with tunable dimensions. To verify the accuracy...
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