Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1997-07-03
1999-10-19
Bettendorf, Justin P.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333132, 333175, H03H 746
Patent
active
059695820
ABSTRACT:
An impedance matching circuit for a multi-band power amplifier has an input port for receiving RF signals from an amplifier, a first path for communicating RF signals in a first frequency band to a first output port, and at least one second path for communicating RF signals in a second frequency band to a second output port. The first path includes impedance matching circuitry for matching the impedance of the first output port and the input port in the first frequency band, and the second path includes impedance matching circuitry for matching the impedance of the second output port and the input port in the second frequency band. The first path contains circuitry which blocks RF signals in the second frequency band, and the second path contains circuitry which blocks RF signals in the first frequency band. A multiband power amplifier includes a multi-band amplifier coupled with an impedance matching circuit for a multiband power amplifier.
REFERENCES:
patent: 2247898 (1941-07-01), Wheeler et al.
patent: 3332038 (1967-07-01), Stanley et al.
patent: 4085405 (1978-04-01), Barlow
patent: 5060294 (1991-10-01), Schwent et al.
patent: 5258728 (1993-11-01), Taniyoshi et al.
patent: 5438684 (1995-08-01), Schwent et al.
Crowhurst, "3-Way Crossover Design", Radio-Electronics, pp. 137-143, Jan. 1957.
PCT International Search Report for International Application No. PCT/US98/12971 dated Oct. 30, 1998.
Wheeler, et al. "A Solid State Amplifier for Satellite Communications," Microwave Journal, vol. 18, No. 7, Jul. 1975 pp. 52-55.
Boesch Ronald D.
Conroy Kevin P.
Bettendorf Justin P.
Ericsson Inc.
Hall David C.
Sembrat Kevin A.
LandOfFree
Impedance matching circuit for power amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Impedance matching circuit for power amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impedance matching circuit for power amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2061228