Window antenna device for use in motor vehicle
US3971029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1974 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Oct 3, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/1278
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio antenna device having an antenna wire and a gain increasing antenna secured to the rear window of motor vehicle in the same manner as is used for a moisture preventive heat wire. An antenna wire is secured to the rear window of a motor vehicle in an attempt to reduce such disturbance in receiving a radio wave, which accrues from an engine, electric generator and electric motor mounted on a motor vehicle or for the purpose of eliminating a space for mounting an antenna, while a gain increasing antenna is provided for compensating for the reduction in radio-wave receiving level, which is caused by shielding action of a moisture preventive heat wire which is secured to the rear window or a portion of a vehicle body, which extends along the periphery of the rear window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.