Glass antenna device for automobile telephone
US5657029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Oct 26, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/1271
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A glass antenna device for automobile telephone includes a glass panel and an antenna pattern mounted on the glass panel. The antenna pattern has a radiation pattern, a signal leader pattern having a first feeder positioned closely to an edge of the glass panel, and an extension extending from the first feeder toward and connected to the radiation pattern, a shield leader pattern having a surrounding pattern surrounding the first feeder and having a second feeder, and a pair of parallel extensions extending from the surrounding pattern parallel substantially the full length of the extension of the signal leader thereto and disposed one on each side thereof, and a rectangular ground pattern connected to an end of at least one of the parallel extensions of the shield leader pattern. Preferably, a feeder cable interconnecting the antenna pattern and an automobile telephone set mounted in an automobile has a portion extending toward the antenna pattern and including a ground conductor electrically connected to an automobile body of the automobile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.