Amplitude modulation and amplitude shift keying circuit
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United States of America Patent
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Jul 11, 2000
Grant Date -
N/A
app pub date -
Sep 30, 1998
filing date -
Dec 8, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a modulation circuit that has excellent modulation characteristics and can be designed as an MMIC. Consequently, this modulation circuit is such that the modulating wave input means is composed of a capacitor 21 and an inductor 22, the carrier input means is composed of a capacitor 23 and a resistance element 24, the self-bias means is composed of a resistance element 26 and a capacitor 27, the carrier selection means is composed of an inductor 22 and a capacitor 28, and the modulated wave output means is composed of a capacitor 28.
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