Planar circuit
US6756857B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1817
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar circuit has a substrate, a planar circuit conductor disposed on a first main surface of the substrate, a ground conductor disposed on a second main surface of the substrate for creating a high frequency resonator based on an electromagnetic wave field in cooperation with the planar circuit conductor, and a circuit element disposed on an opening formed in at least one of the planar circuit conductor and ground conductor to electronically control the electromagnetic wave field. The circuit element may be a variable reactance element such as a varactor diode, or a switching element. The circuit element can variably control the electromagnetic wave field which defines the resonator, so that the resonator can be controlled, for example, to resonate at a variable frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.