Variable power distributor, error detection method thereof, and set value correction method
US7587652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Sep 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A variable power distributor capable of calculating an error between transmission lines of two systems after building a variable power distributor and correcting the set value of the amplitude and the phase according to the error, an error detection method for the variable power distributor, and a set value correction method is provided. The variable power distributor includes: a two-way distributor provided on an input side of a set of transmission lines consisting of a first and a second transmission line; a 90-degree hybrid circuit provided on an output side of the set of transmission lines; and a variable phase shifter, variable resistance attenuator, and a power amplifier provided on each line of the set of transmission lines between the two-way distributor and the 90-degree hybrid circuit. The variable power distributor further includes an error detection unit that monitors an output signal from the 90-degree hybrid circuit and detects an error existing in each component between the first and the second transmission lines based on the monitor output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.