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Analysis and design of a new sinuous plane spiral antenna is researched in this paper. On the basis of Archimedean spiral antenna, a scheme that combing a new type cell of sinuous antenna and microscrip dielectric antenna is presented to implement wide beam and dual-circular polarization. Simulation results indicate that the sinuous antenna has good properties during the required frequency range 2...
A special feeding network is designed with a 3dB quadrate bridge and two baluns, which works at s-band (2∼2.3GHz) to achieve the dual-circular polarization. Because of its structure, the feeding network has the advantages of single-caliber, low profile and low cost. Simulation results show that the feeding network presents good properties during the required frequency range, and meets the engineering...
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