Decade bandwidth planar MMIC four port transformer
US8026775B2 · kind B2 · utility
5Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2009 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/541
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A wide bandwidth planar four port MMIC transformer is provided by input diplexers which divide up the incoming signal into a high band and a low band, with the resulting signals coupled to high band and low band four port transformers implemented in one embodiment using spiral inductors and coupled lines, the outputs of which are combined using two output diplexers to provide a decade bandwidth transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.