Wideband tuning circuit for low-voltage silicon process and method for generating a tuning frequency
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United States of America Patent
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Issued Date -
Nov 6, 2003
app pub date -
May 3, 2002
filing date -
May 3, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wideband tuning circuit suitable for a low-voltage silicon process includes a plurality of frequency band modules for generating a frequency within a particular frequency band of the tuning range. Each frequency band module includes a tuning sensitivity controller responsive to a tuning sensitivity control signal, a sub-band tuning network responsive to one of the frequency band module control signals, a resonator inductor, and a negative resistance generator coupled to the inductor to offset resistance of the inductor. A frequency band module control signal causes the sub-band tuning network to select a sub-band within the frequency band of one of the frequency band module, and a tuning sensitivity control signal causes the tuning sensitivity controller to control the output frequency of the frequency band module within a selected sub-band. A multiplexer selectively couples the output frequency from one of the frequency band modules in response to a band select signal.
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