Antenna for transmitting and/or receiving radio waves by way of electromagnetic induction
US4760394A · kind A · utility
67Cited by
7References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Aug 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20432
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An antenna for an automotive keyless entry system can ensure radio-wave transmission between a transmitter and a controller and can be conveniently mounted on a vehicle body. The antenna for an automotive keyless entry system, has a first planar antenna loop, and a second antenna loop disposed within the first antenna loop and lying in the plane thereof. The axis of the second antenna loop is substantially perpendicular to the axis of the first antenna loop. The first and second antenna loops form an antenna assembly which can be conveniently mounted on the vehicle body as, for example, within a door mirror of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.