Microwave filter having a fine temperature drift tuning mechanism
US10158154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2015 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microwave filter comprises at least one resonant filter element resonating at a resonant frequency and having a housing, a resonant filter cavity arranged in the housing and a resonator element arranged in the housing. At least two tuning elements are arranged on the housing of the resonant filter element and each extend into the cavity with a shaft portion, wherein the two tuning elements are movable with respect to the housing to adjust the length of the shaft portion extending into the housing and wherein the at least two tuning elements are constituted and designed such that by adjusting the length of the shaft portion of each tuning element extending into the housing a temperature drift of the resonant frequency is adjustable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.