Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1997-08-15
2000-06-06
Bettendorf, Justin P.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333206, 330124R, H03H 701
Patent
active
060723769
ABSTRACT:
A filter with a low-noise amplifier includes: two amplification circuits, a first 3-dB hybrid circuit which is connected to an input side of the amplification circuits, a second 3-dB hybrid circuit which is connected to an output side of the amplification circuits, and a filter which is connected to one input terminal of the first 3-dB hybrid circuit. The other input terminal of the first 3-dB hybrid circuit is subjected to matched termination. A signal is inputted to an input terminal of the filter and is outputted from one output terminal of the second 3-dB hybrid circuit and the other output terminal of the second 3-dB hybrid circuit is subjected to matched termination.
REFERENCES:
patent: 3516024 (1970-06-01), Lange
patent: 3911372 (1975-10-01), Seidel
patent: 4740765 (1988-04-01), Ishikawa et al.
patent: 5101171 (1992-03-01), Redmond
patent: 5115373 (1992-05-01), Takeda
patent: 5202653 (1993-04-01), Yamada et al.
patent: 5374910 (1994-12-01), Yamagata
patent: 5448255 (1995-09-01), Hulett et al.
patent: 5712604 (1998-01-01), Tada et al.
Yasufumi Shiomi et al., "C-Band Satellite TV Broadcast Reception System", National Technical Report, vol. 32, No. 4, pp. 436-445, Aug. 1986.
I. Robertson et al., Solid state power amplifier using impedance transforming branch line couplers for L-band satellite systems, XP000629961, pp. 448-450, Sep. 6, 1993.
Ishizaki Toshio
Matsuyoshi Toshimitsu
Nakamura Toshiaki
Sakakura Makoto
Tachibana Minoru
Bettendorf Justin P.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Filter with low-noise amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter with low-noise amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter with low-noise amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2216698