Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1981-11-16
1984-01-24
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333206, 370 37, 455 80, H01P 1213
Patent
active
044279531
ABSTRACT:
Apparatus for processing microwave signals at two predetermined frequencies. Signals at a first predetermined frequency are received or transmitted at one end (input port) of a microwave transmission line whose other end is utilized as a common output port for transmitting and receiving signals at both predetermined frequencies. A band rejection portion is provided which comprises first and second rejection resonators orthogonally disposed along the transmission line at two predetermined positions. A bandpass portion, comprised of a plurality of collinearly aligned bandpass resonators, is disposed at a third predetermined position along the transmission line. Signals at a second predetermined frequency are transmitted or received at a second input port which is part of the bandpass portion. All resonators are capacitively coupled together and to the transmission line. Signals at both predetermined frequencies may be applied to the first and second input ports and are combined in the transmission line by the filtering action of the resonators. Conversely, signals having both predetermined frequencies may be applied to the output port and separated in the transmission line such that signals at the first predetermined frequency are provided at the first input port and signals at the second predetermined frequency are provided at the second input port. Also, signals at one frequency may be transmitted by way of the diplexer while signals at the second frequency are received thereby, or vice-versa.
REFERENCES:
patent: 2984798 (1961-05-01), Bryan
patent: 3978434 (1976-08-01), Morz et al.
Hudspeth Thomas
Keeling Harmon H.
Anderson C. L.
Benman, Jr. W. J.
Gensler Paul L.
Hughes Aircraft Company
Karambelas A. W.
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