Rotatable contactless antenna coupler and antenna
US5014346A · kind A · utility
106Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1988 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/242
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A rotatable contactless RF signal coupler, which couples RF signals between an antenna and an RF signal processor in a portable radio, along with an antenna capable of operating in two modes is described herein. Specifically, the signal coupler includes a transformer that is primarily located within the hinge formed by the housing of the radio and a rotatable flip portion. Substantially constant inductive coupling is maintained in the coupler regardless of rotation. The antenna is capable of operating in a narrow band and a wide band mode to afford antenna operation through varied conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.