Transceiver circuit having a single impedance matching network
US10141971B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Nov 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of transceiver circuits disclosed herein include a first amplifier coupled to receive signals from an antenna during a receive (RX) mode of the transceiver circuit, a second amplifier coupled to transmit signals to the antenna during a transmit (TX) mode of the transceiver circuit, and a single impedance matching network coupled to the antenna and directly connected to a shared node to which the first and second amplifiers are directly connected. The single impedance matching network is configured to transform an impedance of the antenna into a resistance at the shared node. A control circuit is coupled to control the impedance transformation of the single impedance matching network, so as to provide a first resistance at the shared node during RX mode and a second resistance at the shared node during TX mode, wherein the second resistance is different from the first resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.