Signal filter having circularly arranged resonators
US6496710B1 · kind B1 · utility
8Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Aug 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/20381
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A filter for filtering electrical signals comprises a substrate and a plurality of resonators formed circularly to surround the center of the substrate. Each resonator has an arcuate part at a radially outermost part and a pair of linear parts extending from ends of the arcuate part in a radially inward direction. The arcuate part is located at the same distance from the center of the substrate. The linear parts of each resonator have different lengths from each other thereby to provide a sharp decrease of gain at ends of the frequency passband in a filtering response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.