Low impedance series coupled radio frequency directional power detector
US7977947B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2007 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Jun 26, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R21/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is a low series impedance directional power detector, which may be used to measure either forward or reverse power in a radio frequency (RF) circuit. The directional power detector includes current detection circuitry to directionally measure current, voltage detection circuitry to measure voltage, and combining circuitry to combine the directional RF current measurements and the RF voltage measurements into a combined RF measurement, which is indicative of directional power. The current detection circuitry and voltage detection circuitry apply any phase-shifts that are needed to detect power in the direction of interest and ignore power in the opposite direction when the directional power detector is presented with a complex load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.