Planar microwave transceiver employing shared-ground-plane antenna
US5371509A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Oct 4, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microwave intrusion detection system having a transceiver positioned to one side of a substantially conductive member and an antenna positioned on the other side of the conductive member. The antenna shares the conductive member with the transceiver by utilizing the conductive member as a reflective surface. A transmission line is included which has a strip conductor positioned to the one side of the conductive member and a dielectric material therebetween. An antenna has a substantially planar conductive member, a strip conductor positioned to one side of the conductive member, and a dielectric material sandwiched therebetween. A length of wire lies in a plane which is positioned to a second side of the conductive member and is spaced apart a distance from the conductive member. A feed probe wire couples one end of the length of wire to the strip conductor and extends through the conductive member and through the dielectric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.