A new millimeter-wave step-frequency radar sensor for distance measurement

Author

Park, Joongsuk ; Nguyen, Cam

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

12

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

221

Lastpage

222

Abstract

A new compact millimeter-wave distance-measurement sensor prototype has been developed. The sensor is a step-frequency radar implemented using coherent heterodyne technique. It operates in Ka-band (26.5-40 GHz) and is realized using MICs and MMICs. The sensor transmits sinusoidal signals of incremental frequencies and demodulates the received signals into base-band I/Q signals for processing. Experimental results show that the sensor is capable of measuring distance with less than 0.2 inch of absolute error and a low transmitted power of only -20/spl plusmn/3 dBm.

Keywords

distance measurement; heterodyne detection; millimetre wave detectors; millimetre wave measurement; radar detection; 26.5 to 40 GHz; Ka-band; MICs; MMICs; absolute error; base-band I/Q signals; coherent heterodyne technique; distance measurement; incremental frequencies; millimeter-wave step-frequency radar sensor; sinusoidal signals; transmitted power; Chemical sensors; Distance measurement; Frequency; MMICs; Microwave integrated circuits; Millimeter wave measurements; Millimeter wave radar; Millimeter wave technology; Radar measurements; Signal processing;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2002.1010001

Filename

1010001