Antenna
US5006861A · kind A · utility
5Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Apr 20, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q11/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna comprises a conductive helix (10) positioned parallel to a ground plane (12). One end (14) of the helix is coupled to the ground plane (12), while the other end (16) is left open. Radio frequency signals (20) are fed (18) into the open end of the helix to excite the antenna and radiate the radio frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.