Electronic device antenna with switchable return paths
US10056695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Oct 27, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device may have wireless circuitry with antennas. An antenna resonating element arm for an antenna may be formed from conductive housing structures running along the edges of a device. The antenna may have a pair of switchable return paths that bridge a slot between the antenna resonating element and an antenna ground. An adjustable component and a feed may be coupled in parallel across the slot. The adjustable component may switch a capacitor into use or out of use and the return paths may be selectively opened and closed to compensate for antenna loading due to the presence of external objects near the electronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.