Wave transmission lines and networks – Coupling networks – Delay lines including a lumped parameter
Patent
1986-01-22
1987-07-21
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including a lumped parameter
333101, 333103, 333156, H03H 720, H01P 118
Patent
active
046821287
ABSTRACT:
A phase shifter with a phase shift primarily independent of frequency includes first and second quadrature hybrids, a delay and a ganged switch. A first path includes an input into the delay, the delay output being connected into the first quadrature hybrid. The corresponding isolated terminal of the first quadrature hybrid forms the output of the first path. A second path includes an input to the second hybrid quadrature with a terminal thereof as an output. Two remaining terminals of the second quadrature hybrid are taken to a common ground through two capacitors of preselected value. The ganged switch selectively engages a system input to either the inputs of the first path or the second path and simultaneously engages a system output to the outputs of the first path or the second path.
REFERENCES:
patent: 3258721 (1966-06-01), Russa et al.
patent: 3400342 (1968-09-01), Putnam
patent: 3571765 (1971-03-01), Friedman
patent: 3691485 (1972-09-01), Beck
patent: 3781722 (1973-12-01), Person
patent: 3869585 (1975-03-01), Snyder
patent: 3882431 (1975-05-01), Hopwood et al.
patent: 4006418 (1977-02-01), Liskov et al.
patent: 4144501 (1979-03-01), Togawa et al.
patent: 4161705 (1979-05-01), Nemit et al.
patent: 4166999 (1979-09-01), Brady, III
patent: 4190815 (1980-02-01), Albanese
Chapter 12, Radar Handbook; by Louis Stark, R. W. Burns and W. D. Clark (McGraw-Hill Book Company, 1970).
Microwaves & RF; The Working Man's Phase Shift Primer: Robert Sproul (Nov. 1984).
Lorch Electronics Corp. Catalog No. QJ-719, Quadrature Hybrid (Copr. 1984).
Ponzo Michael F.
Sproul Robert W.
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