Antenna and communication apparatus
US10498020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Aug 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna includes, a radiation conductor that is fed by one end, has another end serving as an opened end, and emits or receives radio waves, a first grounding conductor that is installed at the one end side of the radiation conductor and is grounded, a second grounding conductor that is electrically coupled with the first grounding conductor and is formed in a cylindrical shape around the radiation conductor with an elongation direction of the radiation conductor as an axial direction. At least one of the first grounding conductor and the second grounding conductor is electric-field coupled with a conductor where the antenna is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.