System and method for dual-band antenna matching
US7180467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2004 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Jul 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0053
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dual-band antenna matching system and a method for dual-band impedance matching are provided. The method comprises: accepting a frequency-dependent impedance from an antenna; and, selectively supplying a conjugate impedance match for the antenna at either a first and a second communication band, or a third and a fourth communication band. More specifically, the method comprises: tuning a first tuning circuit to a first frequency; and, simultaneously tuning a second tuning circuit to a second frequency. In response, a conjugate match is supplied to the antenna in the first communication band in response to the first frequency. Simultaneously, the antenna is matched in the second communication band in response to the second frequency. When the first tuning circuit is tuned to a third frequency, and the second tuning circuit is tuned to a fourth frequency, then conjugate matches are supplied for the third and fourth communication bands, responsive to the third and fourth frequencies, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.