Evaluation of a charge impedance at the output of a directional coupler
US8471568B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2822
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and circuit for evaluating a charge impedance at the output of a directional coupling having a first line adapted to convey a desired signal between a first terminal and a second terminal adapted to be connected to an antenna, and having a second line coupled to the first one including a third terminal on the side of the first terminal and a fourth terminal on the side of the second terminal, wherein the signal present on the fourth terminal is submitted to a homodyne detector having its local oscillator signal sampled from the third terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.