Self-adaptive frequency band-pass filtering device in microwave signal transceiver
US7082294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jan 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/01
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a self-adaptive band-pass filtering device in a microwave signal transmitter and/or receiver, the receiver being connected to a microwave signal receiving antenna connected to the input of a low-noise amplifier, a mixer that receives, on the one hand, the output signal of the low-noise amplifier and, on the other hand, the signal from a frequency synthesizer, characterized in that the self-adaptive filtering device comprises, upstream of the amplifier, on the one hand, at least one filtering means having at least two different frequency bands and, on the other hand, means for selecting either a filtering means or one of the frequency bands depending on the frequency of the signal to be received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.