Apparatus and method for measuring bi-directional radio channel having multiple antenna
US7911986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0874
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for measuring bi-directional radio channel with multiple antenna are provided. The apparatus includes a transmitter for amplifying a signal that is frequency-up converted to radio frequency and removing a signal of other frequency band, a high power multiplexing switch for sequentially transferring transmitting signals from the transmitter to a corresponding circulator, a plurality of circulators for transferring the transmitting signals from the high power multiplexing switch to a corresponding antenna among multiple antennas, and transferring a receiving signal from a corresponding antenna, a low loss multiplexing switch for receiving the receiving signal from the corresponding circulator, and sequentially transferring the receiving signal; and a receiver for receiving the receiving signal from the low loss multiplexing switch, removing undesired frequency components from the receiving signal except a desired frequency band and low-noise amplifying the desired frequency band of the receiving signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.