Method for automatically adjusting a tunable matching circuit, and automatic tuning system using this method
US9628135B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0458
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for automatically adjusting a single-input-port and single-output-port tunable matching circuit, for instance a single-input-port and single-output-port tunable matching circuit coupled to an antenna of a radio transceiver. The invention also relates to an automatic tuning system using this method. An automatic tuning system comprises: one user port; one target port; a sensing unit; a single-input-port and single-output-port tunable matching circuit comprising one or more adjustable impedance devices; a signal processing unit which delivers a tuning instruction as a function of one or more temperature signals and as a function of two or more real quantities depending on an impedance seen by the target port; and a tuning control unit which delivers tuning control signals, the reactance of each adjustable impedance device of the tunable matching circuit being determined by at least one of the tuning control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.