Adjacent channel rejection in double conversion tuner

Details Adjacent channel rejection in double conversion tuner Adjacent channel rejection in double conversion tuner

1997-10-03

2000-05-30

Hunter, Daniel S.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551802, 4551882, 4551931, 455311, H03D 122

Patent

active

060700610

ABSTRACT:
A double conversion tuner includes a first filter that is relatively flat over a 6 MHz band at 920 MHz. A pair of series-parallel resonant circuits form notch filters that operate on the downconverted signals to economically produce a 6 MHz frequency response at 44 MHz that has excellent adjacent channel and other signal rejection.

REFERENCES:
patent: 4206317 (1980-06-01), Kahn
patent: 4499602 (1985-02-01), Hermeling, Jr. et al.
patent: 4682359 (1987-07-01), Mistry
patent: 5142369 (1992-08-01), Grubbs et al.
patent: 5809088 (1998-09-01), Han
patent: 5812928 (1998-09-01), Watson, Jr. et al.

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