Amplifiers – With semiconductor amplifying device – Including plural amplifier channels
Patent
1987-10-16
1989-04-25
Wan, Gene
Amplifiers
With semiconductor amplifying device
Including plural amplifier channels
330 53, H03F 368
Patent
active
048251771
ABSTRACT:
A broad band, balanced microwave component, such as an amplifier, includes an input Lange coupler having a first center frequency and an output Lange coupler having a second center frequency. The center frequencies of the two Lange couplers are offset or the coupling is different so that at least one of the cross-over points of the input Lange coupler is offset in frequency from both the cross-over points of the output Lange coupler. The pair of Lange couplers so offset in frequency yields no more than one peak in gain which is readily equalized by single-ended amplifiers within the balanced amplifier.
REFERENCES:
patent: 4631493 (1986-12-01), Vendelin et al.
Teague Randy
Weinstein Michael E.
General Instrument Corporation
Wan Gene
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