Antenna for radio communication equipment having improved impedance adjustment
US5896109A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides an antenna for radio communication equipment used as an antenna for portable radio equipment or the like which has been required to be downsized. The antenna comprises a ground horizontal surface section, a main erecting surface section connected to the ground horizontal surface section and extending in a direction perpendicular to the ground horizontal surface section, an auxiliary erecting surface section with one edge thereof facing via a power feed point to ground potential and the other edge thereof extending substantially in parallel to the main horizontal surface section, an auxiliary horizontal surface section connected to the auxiliary erecting surface and extending at a specified clearance with the main horizontal surface section, a connecting section connected to the ether edge of the main horizontal surface section as well as to the other edge of the auxiliary horizontal surface section and extending in a direction perpendicular thereto, and a second extending section connected at right angles to the connecting section and extending in a direction substantially parallel to the ground horizontal surface section, and these components are mon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.