Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Patent
1977-04-28
1979-01-16
Gensler, Paul L.
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
333 35, 333 84M, H01P 510
Patent
active
041351703
ABSTRACT:
A microstrip line, formed by a conductor strip on one side of a dielectric substrate and by a ground-plane layer on the other side thereof, is electrically coupled to another microwave-transmission line, formed by a slot in the ground-plane layer paralleling the strip, with the aid of a supplemental conductor element establishing a virtual short-circuit at an off-axial location on a portion of the strip overlapping the slot. The supplemental conductor element may be a wire, traversing the substrate, or a lateral extension of the strip defining an open-circuited quarter-wavelength line with the ground-plane layer.
REFERENCES:
patent: 3678395 (1972-07-01), Hunton et al.
patent: 3678418 (1972-07-01), Woodward
patent: 3715692 (1973-02-01), Reuss, Jr.
patent: 3784933 (1974-01-01), Scherer et al.
patent: 3835421 (1974-09-01), De Brecht et al.
patent: 3995239 (1976-11-01), Head et al.
patent: 4005375 (1977-01-01), Pringle et al.
Baril Michel
Legendre Jacques
"Thomson-CSF"
Gensler Paul L.
Ross Karl F.
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