Antenna tuning circuit

Details Antenna tuning circuit Antenna tuning circuit

1978-04-13

1980-01-29

Griffin, Robert L.

325388, 325454, H04B 110

Patent

active

041863500

ABSTRACT:
An antenna tuning circuit of the type having a first variable capacitance diode connected in parallel with a coil to form a resonance circuit and a second variable capacitance diode through which the resonance circuit is connected to an antenna, in which the connection position of the first variable capacitance diode to the coil is adapted to be changed for the reduction in the image interference ratio. Reductions in the maximum capacitance and the ratio between the maximum capacitance and the minimum capacitance required for the variable capacitance diodes are also intended by the connection of a third variable capacitance diode to the antenna side of the second variable capacitance diode.

REFERENCES:
patent: 2026075 (1935-12-01), Wheeler
patent: 2027949 (1936-01-01), Yolles
patent: 3372337 (1968-03-01), Beres
patent: 3626300 (1969-08-01), Kennedy
patent: 3636455 (1972-01-01), Miner et al.

Affiliated with

Also associated with

Rating

Antenna tuning circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna tuning circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna tuning circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-883021