Resonator having folded transmission line segments and filter comprising the same
US7181259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Jul 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A resonator and filter including the resonator is disclosed. The resonator (100) includes an open conductive loop (100) with folded transmission line segments (124, 134) extending from the adjacent ends of the loop. Of each transmission line segment, the portion emanating from the respective end of the loop is positioned generally along-side the corresponding portion of the other transmission line segment. That is, the two transmission line segments are folded away from each other. The resonator can be generally elongated in shape, with the loop at one end of the long axis and the transmission line segments at the other. The transmission line segments occupy a footprint (W2) that is not substantially greater than the width of the loop (W1). The filter includes multiple resonators of the invention, each resonator being coupled to at least another or the resonators. The resonators can be positioned in a side-by-side fashion, with the long axes of the resonators parallel or anti-parallel to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.