Multi-Target Concurrent Vital Sign and Location Detection Using Metamaterial-Integrated Self-Injection-Locked Quadrature Radar Sensor

• Published in: IEEE transactions on microwave theory and techniques Vol. 67; no. 12; pp. 5429 - 5437
• Main Authors: Yuan, Yichao, Lu, Chunchi, Chen, Austin Ying-Kuang, Tseng, Chao-Hsiung, Wu, Chung-Tse Michael
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.12.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Automobile industry; Automobile safety; Beam steering; Doppler radar; Frequency shift keying; Frequency spectrum; Ground truth; Keying; Leaky waves; Leaky-wave antenna (LWA); Metamaterials; metamaterials (MTM); Oscillators; Quadratures; Radar antennas; Radar detection; radar systems; Radio frequency; Radio signals; self-injection-locked (SIL) radar; Sensors; Target detection; vital sign detection; Waveforms

A new architecture of self-injection-locked (SIL) quadrature radar sensor based on a metamaterial (MTM) leaky-wave antenna (LWA) to detect multi-target vital sign and location simultaneously is proposed for the first time. The angular information of targets is obtained by a 1-D MTM LWA with -50° to...