Tuners – Tuner unit directly responsive to voltage and/or current... – Reactance tuning
Patent
1977-02-15
1978-12-12
Gensler, Paul L.
Tuners
Tuner unit directly responsive to voltage and/or current...
Reactance tuning
331 96, 331117D, 331177V, 333 73S, 333 82B, 334 45, H03J 318, H03B 508
Patent
active
041298420
ABSTRACT:
In one embodiment, a resonant circuit comprising a ground-contacting conductive member, a dielectric layer provided on the ground-contacting conductive layer, a ground-contacting member provided on the dielectric layer and electrically connected to the ground-contacting conductive member, and a U-shaped microstrip line formed on the dielectric layer. Both ends of the U-shaped microstrip line face the ground-contacting member. One of them is connected to the ground-contacting member through a lumped capacitor, and the other end is directly connected to the ground-contacting member.
REFERENCES:
patent: 3001069 (1961-09-01), Hubbard
patent: 3471812 (1969-10-01), Lackner
patent: 3806844 (1974-04-01), Buckley et al.
patent: 3970974 (1976-07-01), Bastian
patent: 4025882 (1977-05-01), Takeo
Fujimori Shigeo
Torii Ken-ichi
Gensler Paul L.
Tokyo Shibaura Electric Co. Ltd.
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