Antenna/transceiver configuration in a traffic sensor
US7558536B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Aug 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q23/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for obtaining vehicular traffic data is described. The sensor includes a housing having a front surface. The sensor also includes an antenna plate having an antenna ground surface and a radiating surface. The antenna plate is disposed within the housing for transmitting radiation to a vehicle through the front surface and for receiving the radiation reflected back from the vehicle through the front surface. A transceiver circuit plate is disposed within the housing for electrically driving the antenna plate. The transceiver circuit plate has a component side for supporting circuit components and a circuit ground side for grounding the circuit components. The antenna ground surface is between the radiating surface and the transceiver circuit plate. A processor unit drives and processes electrical signals from the transceiver circuit plate to obtain vehicular traffic data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.