Slot antenna having a MEMS varactor for resonance frequency tuning
US7348928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Dec 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Briefly, in accordance with one embodiment of the invention, a slot antenna may include a primary slot and one or more secondary slots. The size of the antenna may be reduced by adding one or more of the secondary slots which may add additional inductance to the antenna. Furthermore, the size of the antenna may be reduced by increasing the inductance of the secondary slots via increasing the length of the slots or by changing the shape of the slots. The antenna may include one or more MEMS varactors coupled to one or more of the secondary slots. The resonant frequency of the slot antenna may be tuned to a desired frequency by changing the capacitance value of one or more of the MEMS varactors to a desired capacitance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.