High frequency filter circuit

Details High frequency filter circuit High frequency filter circuit

1996-03-11

1997-12-30

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333175, 455302, 4551981, 455282, H01P 120

Patent

active

057035458

ABSTRACT:
A filter circuit having an amplifier stage, an upstream filter and a downstream bandpass filter. The filter includes, inter alia, a rejection circuit tuned to an intermediate frequency and a series circuit, tuned to an image frequency and formed by a capacitor and a .lambda./4 coaxial stub. The inductance formed by the coaxial stub is shared by the series circuit and the rejection circuit.

REFERENCES:
patent: 3562417 (1971-02-01), Poppa
patent: 4182997 (1980-01-01), Brambilla
patent: 4188598 (1980-02-01), Hunt
patent: 4315333 (1982-02-01), Yamashita et al.
patent: 4340975 (1982-07-01), Onishi et al.
patent: 4516270 (1985-05-01), Phillips
patent: 4547901 (1985-10-01), Shibata et al.
patent: 5170493 (1992-12-01), Roth
patent: 5245300 (1993-09-01), Sasaki et al.
Funkschau 1976, Heft 7 E. Koch, Fernseh-Tuner MIT Neuartigem Schaltungskonzept Fur Empfanger An Grob-Gemeinschaftsantennen-Analgen (GGA) 255-256 German Search Report No Month.

Affiliated with

Also associated with

Rating

High frequency filter circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High frequency filter circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency filter circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-206444