Patent · US Active

RF transceiver with test capability

US10284248B2 · kind B2 · utility

2Cited by

0References

20Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Helmut Kollmann · Linz, AT
Jochen Schrattenecker · Eisenlohrsweg, AT
Florian Starzer · Ansfelden, AT

Key dates

Filing date	Dec 8, 2017
Grant date	May 7, 2019
Priority date	—
Expiry date	Dec 8, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04W24/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An RF front-end circuit of an RF transceiver is described herein. In accordance with one exemplary embodiment, the fronted circuit includes a local oscillator (LO) configured to generate an RF transmit signal, an RF output port coupled to the local oscillator, wherein the RF transmit signal is output at the RF output port, and a monitoring circuit receiving an input signal and configured to determine the phase of the input signal or the power of the input signal or both. A directional coupler is coupled to the RF output port and configured to direct a reflected signal incoming at the RF output port as input signal to the monitoring circuit, and a controller is configured to detect, based on the determined phase or power or both, a defect in a signal path operably connected to the RF output port.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.