Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1976-09-20
1981-05-19
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
334 74, 343711, 343858, 343861, 455140, H01P 516, H01Q 150
Patent
active
042688051
ABSTRACT:
A circuit for coupling a citizens band transceiver and a broadcast band receiver to a standard automobile antenna. The circuit is comprised of an impedance transforming network connected in series with the standard automobile antenna and a parallel-tuned circuit in series with the broadcast band receiver. The series-tuned network is comprised of a split capacitance for stepping the impedance down from the citizens band transceiver to the lower impedance of a standard automobile antenna. The series-tuned circuit also includes a tuning coil for matching the output of the network to the particular automobile antenna. In series between the automobile antenna and the broadcast band receiver is a parallel-tuned circuit comprised of a capacitor and a tuning coil. To prevent multiplication and excessive voltages in the event the broadcast band receiver should become disconnected, a limiting resistor connects the parallel-tuned circuit to ground. The tuning coil of the impedance transforming network has a novel molded plastic tuning knob for simplifying tuning of the circuit.
REFERENCES:
patent: 2628312 (1953-02-01), Peterson et al.
patent: 2672555 (1954-03-01), Ehrbar
patent: 3424983 (1969-01-01), Schilb
patent: 3465344 (1969-09-01), Scott et al.
patent: 3725942 (1973-04-01), Ukmar
patent: 4037177 (1977-07-01), Tyrey
Friedman, Antenna Duplexer, Electronics Illustrated, Mar. 1962, pp. 66, 67, 108, 110.
Rist Bruno A.
Sanchez George
Tanner James L.
Gensler Paul L.
Tanner Electronic Systems Technology, Inc.
LandOfFree
Citizens band broadcast band coupling 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 Citizens band broadcast band coupling circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Citizens band broadcast band coupling circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1492363