Variable radio frequency band filter
US7449981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2007 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Apr 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/205
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A variable radio frequency band filter capable of varying the resonance frequency band comprises a housing having a support; a number of resonator rods arranged along the longitudinal direction of the housing; at least one tuning rod positioned on top of the resonator rods; a tuning support extending through the respective tuning rods along the longitudinal direction of the housing and adapted to slide on top of the respective resonator rods to vary the position of the tuning rods; and a frequency variation unit positioned on a lateral surface of the housing. The frequency variation unit being coupled to an end of the tuning support and adapted to vary the position of the tuning rods, as the tuning support is slid, according to the frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.