Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1989-12-04
1991-06-11
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333121, 333 25, 333100, H03H 721, H03H 748
Patent
active
050235761
ABSTRACT:
A broadband 180 degree hybrid having lumped or semi-lumped elements is comprised of a network of low and high pass filters. A 180 degree phase differential is obtained by splitting an input signal from a first input. A first portion of the split signal is passed through a low pass filter and a second portion is passed through a high pass filter. The phase differential is maintained at 180 degrees. A zero (0) degree phase differential is obtained by splitting an input signal from a second input and passing both portions through a pair of low pass filters or through a pair of high pass filters.
REFERENCES:
patent: 2076248 (1937-04-01), Norton
patent: 2771518 (1956-11-01), Sziklai
patent: 3017584 (1962-01-01), Lundry
patent: 4578652 (1986-03-01), Sterns
patent: 4851795 (1989-07-01), Beckwith
Seely Warren L.
Staudinger Joseph
Bogacz Frank J.
Gensler Paul
Motorola Inc.
Powell Jordan C.
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