THE DIFFERENTIAL VARACTOR USING GATED VARACTOR

A differential varactor is provided to improve common mode rejection ratio by forming gate varactor as a differential varactor. A first input terminal is connected with a source electrode of a first and a third gate varactor through a first and a third capacitor. A second input terminal a source of...

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Bibliographic Details
Main Authors MIN, BYUNG HUN, HYUN, SEOK BONG, KIM, YOUNG HO, PARK, KYUNG HWAN
Format Patent
LanguageEnglish
Published 09.04.2009
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:A differential varactor is provided to improve common mode rejection ratio by forming gate varactor as a differential varactor. A first input terminal is connected with a source electrode of a first and a third gate varactor through a first and a third capacitor. A second input terminal a source of the second and fourth varactor through a second and fourth capacitor commonly. A source electrode of the first and the second gate varactor supplies positive bias voltage through a third and a fourth resistor(R3,R4). A source electrode of the third and fourth gate varactor supplies negative voltage through a fifth and a sixth resistor.
Bibliography:Application Number: KR20070100608