Micro electro-mechanical system (MEMS) phase shifter

Wave transmission lines and networks – Coupling networks – Delay lines including long line elements

Reexamination Certificate

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C342S371000, C342S375000

Reexamination Certificate

active

06958665

ABSTRACT:
A micro electro-mechanical system (MEMS) phase shifter for shifting the phase of a radio frequency (RF) signal. The phase shifter includes a quadrature coupler having an input port, an output port, a first load port and a second load port. A first variable reactance is coupled to the first load port and a second variable reactance is coupled the second load port. Each variable reactance has a plurality of reflecting phase shifting elements each having an associated micro electro-mechanical system (MEMS) switching element to individually and selectively couple the reflecting phase shifting element to the appropriate load port.

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Application Note: Creating Microstrip Footprints.
“Analysis and Development of Microstrip Interdigitated Structures Using FDTD and Statistical Techniques,” A Thesis in Electrical Engineering by Jose G. Colom, Aug. 1998.

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