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Preliminary structures and performance results of two different 60 GHz band planar phase shifters using liquid crystal (LC) are presented. The first phase shifter is based on a meandered microstrip line structure with the conductor pattern exposed to a layer of a nematic LC, while the second phase shifter is based on the reflection type microstrip line phase shifter structure whose tunable reflective...
A liquid crystal (LC) based inverted microstrip meander line phase shifter is presented. The control of phase shift is achieved through use of an external electric field. To facilitate on-wafer measurements and the application of the electric field to the LC, a specially developed transition from the inverted microstrip line to the CPW is used. The performance of the proposed meander line phase shifter...
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