Antenna coupler for portable cellular telephones
US5532703A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/242
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An extended retractable wire-type antenna of a portable cellular telephone is coupled to a coaxial cable extending from a remote external antenna by a coupler including an elongated body formed by two mating longitudinal sections molded of a rigid plastics material. The body sections have longitudinally spaced opposing hook-shaped tabs which clip onto the extended antenna in response to slight flexing of the antenna. The sections define an internal cavity for receiving the coaxial cable at one end and for positioning an approximately quarter wave length cable conductor element adjacent the extended antenna in parallel relation to produce an effective inductive connection. A plastic screw prevents sliding of the coupler on the retractable antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.