Tunable wideband bandpass filter, tunable multi-band bandpass filter using the same, and methods therefore
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United States of America Patent
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Aug 21, 2007
Grant Date -
Aug 25, 2005
app pub date -
Feb 22, 2005
filing date -
Feb 21, 2004
priority date (Note) -
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Abstract
A tunable wideband bandpass filter that can digitally vary the center frequency and bandwidth of a signal to be filtered, and includes a plurality of switched-capacitor banks for varying capacitance and converting the center frequency and bandwidth into a digital signal, and a plurality of inductors provided for inductance to generate the center frequency, the plurality of switched-capacitor banks that may be integrated into a signal chip.
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