Monolithic microwave integrated circuit voltage controlled coupled feedback oscillator
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United States of America Patent
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Jun 27, 2006
Grant Date -
Apr 1, 2004
app pub date -
Sep 15, 2003
filing date -
Sep 13, 2002
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Abstract
A feedback oscillator device formed with an integrated circuit having a semiconductor material substrate on a ground plane. The circuit has an amplifier having an input and an output is provided at least in part on said semiconductor material substrate. A directional coupler is used to couple the amplifier output signal to the amplifier input through a parallel separated transmission lines transfer system and a capacitor such as a varactor. The substrate can be of gallium arsenide.
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