Radar device and security monitoring system
US9891313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2015 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar device for detecting an OUD (Object Under Detection) includes a signal source, a first antenna, a second antenna, a mixer, and a 90-degree coupler. The signal source is configured to generate an incident signal. The first antenna is configured to transmit the incident signal to the OUD. The second antenna is configured to receive a reflective signal from the OUD. The mixer is configured to generate a baseband signal according to the incident signal and the reflective signal. The second antenna is coupled through the 90-degree coupler to the mixer, or the signal source is coupled through the 90-degree coupler to the first antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.