CST – Computer Simulation Technology

Circularly Polarized Curl Antenna Lens With Manual Tilt Properties
Sean M. O’Kane, Vincent F. Fusco
IEEE Transactions on Antennas and Propagation
Volume: 57, Issue: 12, Dec. 2009
3984 - 3987
A microwave lens based on spatially combining the outputs from a double sided arrangement of circularly polarized printed curl antennas is demonstrated. The lens operating at 2.49 GHz is capable of converting eitherLHorRHCP incident energy intoRHorLHCP respectively. A single element converter is developed as the core lens element. Directivity and coupling studies are presented in order to assist in the design of the lens array. The lens has low profile and requires no internal matching networks. A dual sided 3 3 array was constructed and exhibited 19 dBi gain. It is shown how relative rotation of the lens elements can be utilized to accept/send the entry/exit beam at angles away from boresight

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