No-matching-circuit multi-band diversity antenna system for medical external communications
US10141651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Nov 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna for electrical coupling to a wireless communication circuit includes a first conductive strip segment having a first length, a second conductive strip segment having a second length different from the first length and coupled to the first conductive strip segment at a feed point to be electrically coupled to the drive node, and a third conductive strip segment having a third length less than both the first length and the second length. A first end of the third conductive strip is coupled to the feed point and a second end is coupled to circuit ground. The first conductive strip segment provides a first specified operating frequency range at a fundamental resonance mode corresponding to the first length plus the third length, and the second conductive strip segment provides a second specified operating frequency range at a fundamental resonance mode corresponding to the second length plus the third length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.