Digitally controlled UWB millimeter wave radar
US8098193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2009 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Apr 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultra wide band (UWB) millimeter (mm) wave radar system includes a signal source having a control input, a GHz signal output and a frequency controlled output. A control loop is coupled between the GHz signal output and the control input including a frequency divider and a digitally controlled PLL that provides a locked output coupled to the control input of the signal source to provide frequency locked output signals that are discrete frequency swept or hopped. A frequency multiplier is coupled to the frequency controlled output of the signal source for outputting a plurality of mm-wave frequencies. An antenna transmits the mm-wave frequencies to a surface to be interrogated and receives reflected mm-wave signals therefrom. A mixer mixes the reflected mm-wave signals and mm-wave frequencies and processing circuitry determines at least one parameter relating to the surface from the mixing output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.