Multiband R. F. switching device
US7005940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Feb 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/44
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiband transformation stage (14) comprising a common first signal port (20), a common second signal port (26) and a signal path (50) coupled between the first signal port (20) and the second signal port (26) is described. The signal path (50) is switchable between a first state with a first quarter-wavelength transformer characteristic for a first frequency band, a second state with a second quarter-wavelength transformer characteristic for a second frequency band and a third state with a transmission characteristic. The invention also relates to a multiband switching device comprising the multiband transformation stage (14) in combination with a low-power switching stage (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.