Integrated VSWR detector for monolithic microwave integrated circuits
US8723531B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2822
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated RF circuit has an RF input port and an RF output port coupled to an external circuit element having known impedance such as an antenna. An RF circuit element is disposed between the RF input port and the RF output port and has a first input port and a first output port. The RF circuit element affects a signal received at the first input port and provides the affected signal to the first output port. The integrated RF circuit also has a VSWR detector circuit that measures a ratio of a characteristic of RF signals at the first input port and the first output port and that provides an indication of the ratio at a VSWR output port. The measured ratio of the characteristic is affected by an impedance of the coupling thereby providing an indication relating to the coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.