A modular 24 GHz radar sensor for digital beamforming on transmit and receive

Author

Harter, Marlene ; Kornbichler, Andreas ; Zwick, Thomas

Author_Institution

Inst. fur Hochfrequenztech. und Elektron. (IHE), Karlsruher Inst. fur Technol. (KIT), Karlsruhe, Germany

fYear

2010

fDate

Sept. 30 2010-Oct. 1 2010

Firstpage

507

Lastpage

510

Abstract

A compact modular 24 GHz imaging radar sensor for digital beamforming is presented. Besides digital beamforming on receive, the advantage of multiple switched transmitters is used for increasing the angular resolution, which requires less hardware effort. The presented FMCW radar sensor provides up to eight switchable transmitters and eight receiver channels for parallel receiving, allowing digital beamforming on transmit and receive. A new switching technique via switchable amplifiers is proposed. Within the scope of this paper an overview of the whole radar sensor´s architecture, design and realization is given. The performance of the sensor is successfully demonstrated and evaluated by measurements.

Keywords

CW radar; FM radar; array signal processing; radar imaging; radar receivers; radar resolution; radar transmitters; FMCW radar sensor; angular resolution; digital beamforming; frequency 24 GHz; modular imaging radar sensor; multiple switched transmitters; receiver channels; switchable amplifiers; switchable transmitters; switching technique; Antenna measurements; Array signal processing; Arrays; Radar; Receivers; Switches; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (EuRAD), 2010 European

Conference_Location

Paris

Print_ISBN

978-1-4244-7234-5

Type

conf

Filename

5614917