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Abstract
This study presents the use of contiguous rectangle-patches radome as a method of generating circularly polarized signals from linearly polarized antenna or antenna array that are covered by the structure. Experiment results of the novel structure with 2 × 2 antenna array are demonstrated for L-band operation. It is shown that left hand circular polarization of antenna array can be achieved with appropriate parameters design of radome. In addition, the structure is also built as a director that can greatly improve the gain of the antenna.
Funding
This work was supported in part by the National Natural Science Foundation of China [grant number 61271416], [grant number 61301093]; the Aerospace support fund of China [grant number 2012-HT-XGD]; NPU start-up Foundation for Research [grant number G2015KY0303].