Tunable parasitic resonators
US7162264B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Jun 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A mobile terminal can include a printed circuit board with a reference voltage conductor, an antenna coupled to the first side of the printed circuit board, and a parasitic resonator coupled to the second side of the printed circuit board. More particularly, the parasitic resonator can be connected to the printed circuit board by first and second couplings, which provide first and second impedances, respectively, between the parasitic resonator and the reference voltage conductor. The impedances can be of different values, and can be provided by discrete impedance components. The resonant frequency of the parasitic resonator can be adjusted by altering the impedances of the first and second couplings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.