Microwave diplexer
US4427953A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1981 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Nov 16, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2133
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.