Microwave filter with a wide spurious-free band-stop response
US5254963A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Sep 25, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/2138
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to reducing the number of components required to minimize intermodulation distortion within the wide transmission frequency band used by a satellite communications repeater system. In particular, at least two TM.sub.010 mode cavity is cascaded to a plurality of TE.sub.113 mode cavities to form a narrow band-pass, wide band-stop filter for receiving and outputting channel signals to the multiplexer manifold of a satellite repeater. The filter thus constructed realizes the narrow band-pass response required in microwave communications, while eliminating the spurious resonance frequencies normally eliminated by additional filter components. In this manner, the size and weight considerations of the satellite system are improved without loss in performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.