Tunable wideband bandpass filter, tunable multi-band...

Details Tunable wideband bandpass filter, tunable multi-band... Tunable wideband bandpass filter, tunable multi-band...

2007-08-21

2007-08-21

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S167000, C333S185000

Reexamination Certificate

active

11062600

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.

REFERENCES:
patent: 2325174 (1943-07-01), Arthur
patent: 2496177 (1950-01-01), Edward et al.
patent: 6750734 (2004-06-01), Utsunomiya et al.

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