Antenna system with channeled RF currents
US6421016B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Jan 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An improved antenna system to channel counterpoise currents for an unbalanced antenna such as a helical monopole. A first conductor, or ground resonator, is coupled to a ground connection near the antenna and is located distally from a user to reduce electromagnetic exposure. The first conductor presents a low impedance path at an operating frequency of the antenna such that RF currents are attracted onto the first conductor. A second conductor, such as a printed circuit board or user interface circuitry, is also coupled to the ground connection of the first conductor. The second conductor presents a high impedance path at the operating frequency of the antenna such that RF currents are diverted away from the second conductor which is held closer to a user than the first conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.