Tuning multiport amplifiers
US8004356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2008 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/68
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of tuning a multiport amplifier and a multiport amplifier are provided. The multiport amplifier comprises an even number of microwave power amplifiers arranged in parallel, a series of input ports and a series of output ports, the input ports being connected to the amplifiers by a series of input hybrids and the output ports being connected to the amplifiers by a series of output hybrids, whereby an input signal at any given input port is amplified by all amplifiers, and then recombined into an output signal at a given output port. The method includes the steps of matching each amplifier in a pair of adjacent amplifiers to the other to an extent which is greater than matching between non paired amplifiers while still being able to ensure acceptable signal isolation between all output ports. This method of tuning results in an MPA well suited to the requirements of certain frequency re-use schemes and which has a significantly reduced set-up and test time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.