Wideband frequency tunable ring resonator
US8854161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Mar 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a wideband frequency tunable ring resonator, wherein, comprises a closed λg/2 transmission line and two variable capacitors with tunable capacitance, the λg/2 transmission line is axisymmetric around a central line, first ends of the two variable capacitors are respectively connected to two intersection points of the λg/2 transmission line and the central line, the second ends of the two variable capacitors are respectively grounded. By implementing the technical solution of present invention, following technical effects are obtained. The fundamental resonant frequency (ffund) can be shifted up and down by controlling the respective values of the two loading capacitors, resulting in a bi-directional tuning of ffund. As a result, the tuning range of this invention can be approximately doubled as compared with the conventional tunable ring resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.