Hearing device with two-half loop antenna
US10841716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2019 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hearing device includes a wireless communication unit, such as a radio frequency transceiver, and a two-half loop antenna. The antenna includes a conductor defining a first half loop and a second half loop configured to be fed in series with a radio signal from a radio frequency transceiver. The first half loop and the second half loop have mirror images forming respective half loops of the two-half loop antenna. Transverse segments of the first half loop and second half loop join the first half loop and the second half loop at a mid-point of the antenna near a feeding point. The physical antenna length of the antenna is less than ¾ of the wavelength of the radio frequency signal to be transmitted or received through the antenna. An electrical length of the antenna is approximately equal to the wavelength of the radio frequency signal to be transmitted or received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.