Radio transceivers
US11405070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2018 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio transceiver device comprises a transmit amplifier, a receive amplifier, an impedance matching circuit portion, and an antenna connection node for connection to an antenna. The impedance matching circuit portion is arranged between the antenna connection node and each of the transmit and receive amplifiers. The impedance matching circuit portion comprises a switch and an inductor and is arranged such that, in a receive mode of operation, the switch is first state and incoming signals from the antenna pass to the receive amplifier via the inductor. In a transmit mode of operation, the switch is in a second state and the transmit amplifier is coupled to a power supply rail VDD via the inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.