Temperature compensated resonant cavity
US4488132A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A resonant microwave cavity 2 has a bi-metal end cap 4 or a tri-metal end cap 26. The end caps 4, 26 include irises 10, 28. The end caps are affixed to walls of the cavity 2 in the usual manner. As temperature varies, the end caps or irises expand into or out of the cavity to compensate for the increase or decrease in length of the cavity walls due to variations in temperature. The internal volume of the cavity is maintained substantially constant. When a bi-metal end cap is used, each layer of metal has a different coefficient of expansion. When a tri-metal end cap is used, the center layer has the highest of coefficient of thermal expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.