High frequency front-end module and duplexer
US7561005B2 · kind B2 · utility
10Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2008 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Mar 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/52
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A high frequency front-end module includes an antenna terminal ANT, a diplexer, high frequency switches, LC filters, and SAW duplexers. The SAW duplexer is defined by SAW filters and high-pass filters disposed at input sides thereof. The high-pass filters function as phase-matching elements having an anti-surge function against a surge coming from the antenna terminal ANT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.