Antenna coupling device for coupling an antenna of a hand-portable telephone to a remotely located antenna
US5673053A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Mar 5, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/242
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna coupling device is disclosed for connecting, substantially inductively, a first antenna to a second antenna, whereat the antenna coupling device comprises a loop antenna (4) with two poles (15, 16). The loop antenna (4) is arranged to surround the first antenna and is connected to the second antenna via both of its poles (15, 16). Such an antenna coupling device connected via a cable (5) to an external antenna by the action of threading the antenna coupling device onto a helical antenna (2) of a hand-portable telephone (1) is used inside a vehicle for improving transmission and reception conditions of the hand-portable telephone (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.