High frequency switch and radio communication apparatus with layered body for saw filter mounting
US6750737B2 · kind B2 · utility
17Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A layered body of a SAW filter includes a surface dielectric layer having a surface layer electrode pattern formed thereon, and a first dielectric layer having a pair of electrode patterns and a first ground electrode pattern formed thereon. A pair of balanced output terminals of SAW filters of unbalanced input-balanced output are connected respectively to the pair of electrode patterns via the surface layer electrode pattern, and a part of the first ground electrode pattern is disposed between the pair of the electrode patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.