Micromechanical microwave power meter

Details Micromechanical microwave power meter Micromechanical microwave power meter

2005-06-16

2009-06-16

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S658000, C324S095000

Reexamination Certificate

active

07548074

ABSTRACT:
A micromechanical sensor for measuring millimetric wave or microwave power, which sensor includes a wave line for conducting the millimetric or microwave power and a moving part and a fixed electrode, in such a way that the capacitance (C) between the moving part and the fixed electrode couples to the wave power advancing in the wave line. According to the invention, the capacitance (C) between the moving part and the fixed electrode is divided into at least two portions (C
), which are located at a distance from each other, in such a way that the wave power advancing in the wave line couples to the portions (C
) of the capacitance (C) consecutively and experiences the inductive load between the portions (C
) of the capacitance (C). Thus the frequency band of the sensor can be substantially broadened and the reflective coefficient can be kept reasonably small.

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Seppa et al., IEEE Transactions on Instrumentation and Measurement, vol. 50, No. 2, Apr. 2001, pp. 440-444.

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