A Dual Frequency Ka-Band Printed Fresnel Reflector for Ground Terminal Applications

Satellite-based telecommunication systems operating in Ka-band require high gain ground terminal antennas. A promising architecture based on dual frequency printed Fresnel reflectors is presented in this paper. The complete development of this antenna including its design methodology, manufacturing, and testing is described. In order to scan its beam, the proposed antenna system can either be combined with electric motors or be transformed into a reconfigurable reflectarray system by replacing the passive reflecting cells by reconfigurable ones. A possible way of implementing such electronically reconfigurable reflecting cells is also presented.

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