Title :
A portable 24-GHz FMCW radar based on six-port for short-range human tracking
Author :
Zhengyu Peng;Changzhi Li
Author_Institution :
Department of Electrical and Computer Engineering, Texas Tech University, TX 79409 USA
Abstract :
A 24-GHz portable FMCW radar for short-range human tracking is designed, fabricated, and tested. The complete radar system weights 17.3 grams and has a dimension of 65mm×60mm×25mm. It has an on-board chirp generator, which generates a 45.7 Hz sawtooth signal to control the VCO. A 1.8GHz bandwidth ranging from 22.8 GHz to 24.6 GHz is transmitted. A pair of Vivaldi antennas with a bandwidth of 3.8 GHz, ranging from 22.5 GHz to 26.3 GHz, are implemented on the same board with the RF transceiver. A six-port structure is employed to down-convert the RF signal to baseband. Measurement result has validated its promising ability to for short-range human tracking.
Keywords :
"Radar antennas","Radar tracking","Chirp","Radio frequency","Baseband","Voltage-controlled oscillators"
Conference_Titel :
RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2015 IEEE MTT-S 2015 International Microwave Workshop Series on
DOI :
10.1109/IMWS-BIO.2015.7303787
