Radio receiver antenna systems
US5177495A · kind A · utility
6Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/1278
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio receiver antenna system including an antenna arrangement (1) which provides two signals (v.sub.a, v.sub.b) respectively as are provided by two antennas having different reception characteristics, and circuitry (T1, T2, 35 to 47) for combining the signals so that the output (V.sub.0) is significant for all values of the relative phase of the two signals. A particular application is in vehicle radio receiver systems using the rear window heater as an antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.