Automobile antenna system for diversity reception
US4845505A · kind A · utility
14Cited by
34References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Feb 13, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0805
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An automobile antenna system for diversity reception includes high-frequency pickups for effectively picking up the high-frequency surface currents which are induced on a vehicle body by broadcast waves and which flow concentratedly on the marginal edge portions of the vehicle body. The high-frequency pickups are disposed on both sides of the roof panel at the rear and front portions of a vehicle body in close proximity to the marginal edge and in a concealed state without any external exposure. The pickup that enjoys the optimum reception at any given time is selected from among the pickups by automatic changeover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.