Method and system to extend a useable bandwidth of a signal generator
US8027390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | May 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0483
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system to extend an operating bandwidth of a signal generator comprises a signal generator, an output port, a first transmission line extending between the signal generator and the output port, a mixer adapted to receive a first signal from the signal generator, a local oscillator adapted to provide a second signal to the mixer to beat against the first signal, a second transmission line extending from the mixer to transmit a plurality of output signals of the mixer, and one or more channels couplable between the first transmission line and the second transmission line. The one or more channels include a first coupler having a length adapted to couple one or more of the output signals within a band of frequencies from the second transmission line to the channel, a second coupler having a length adapted to couple the one or more of the output signals from the channel to the first transmission line, and a filter arranged between the first coupler and the second coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.