High isolation microwave module
US5386204A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1993 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Aug 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high isolation microwave module includes a housing floor with mounting surfaces for placing microwave components and housing walls ending in housing wall ends coupled to and projecting from the housing floor. A lid including a lid plate and lid walls ending in lid wall ends projects from the lid plate. The lid walls extend toward the housing floor and the plurality of housing walls extend toward the lid plate but neither the lid wall ends nor the housing wall ends are coupled to the housing floor or lid plate, respectively. A plurality of cavities exist between the adjacent lid walls between the housing and the lid plate and a plurality of irises exist between immediately adjacent housing walls and corresponding lid walls. The irises and cavities act as a multi-section high pass filter to provide attenuation to a microwave signal passing through the module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.