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

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2 Author(s)
Joongsuk Park ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Cam Nguyen

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.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:12 ,  Issue: 6 )

Date of Publication:

June 2002

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