Wireless receiver including tunable RF bandpass filter

Details Wireless receiver including tunable RF bandpass filter Wireless receiver including tunable RF bandpass filter

1997-01-03

1999-10-05

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455285, H04B 100

Patent

active

059638567

ABSTRACT:
The wireless receiver band is divided into a plurality of smaller bands using a tunable duplexer to produce a first IF signal of a much lower frequency enabling better unwanted signal filtering using a filter of a certain Q.

REFERENCES:
patent: 4979230 (1990-12-01), Marz
patent: 5212817 (1993-05-01), Atkinson
patent: 5239701 (1993-08-01), Ishii
patent: 5265267 (1993-11-01), Martin et al.
patent: 5276914 (1994-01-01), Ishizuka
patent: 5303417 (1994-04-01), Laws
patent: 5519890 (1996-05-01), Pinckley
patent: 5579347 (1996-11-01), Lindquist et al.
patent: 5640698 (1997-06-01), Shen et al.
patent: 5711009 (1998-01-01), Law

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