Multiple antenna impedance optimization
US6920315B1 · kind B1 · utility
323Cited by
21References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2000 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/521
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiple antenna mobile communication device, such as a cellular telephone, having multiple radios and multiple antennas located in close proximity to each other uses a parallel tuning circuit to optimize the isolation between the antennas. The parallel tuning circuit can include multiple impedance matching circuits to match the impedance in multiple frequency bands or isolating antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.