Antenna sharing device and portable telephone
US7777592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2007 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | May 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/0571
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An antenna sharing device has a common signal terminal pair, a first terminal pair, a second terminal pair, a first filter, a second filter, a first inductor element, second inductor elements, third inductor elements. The second and third inductor elements have a plurality of inductor elements, respectively. An inductor element closest to the first terminal pair among the inductor elements included in the second inductor elements and an inductor element closest to the second terminal pair among the third inductor elements are arranged further away from the first inductor element than the other inductor elements included in the second and third inductor elements, or formed on a substrate different from a substrate on which the first inductor element is formed, or formed opposite to the first inductor element by sandwiching a shielding pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.