Characterization of 35 GHz Tunable Reflectarray Unit-Cells Using Highly Anisotropic Liquid Crystal
Radu Marin, Alexander Mössinger, Jens Freese, Rolf Jakoby
German Microwave Conference - GeMiC 2006 -
1st January 0001
This paper presents the study, relization, and measurement of diferent tunable unit-cells for reconfigurable reflectarrays at 35 GHz. The emphasis of the work lies in the use of nematic Liquid Crystal, a material with electrically tunable dielectric properties. Unit cells have been optimized with respect to the trade-off between maximum attainable phase range and losses. The realised structures have been tested in a waveguide simulator and phase ranges up to 290° could be demonstrated.
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