Title :
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
fDate :
6/1/2002 12:00:00 AM
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;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2002.1010001
