@inproceedings{29ea0e2345f641708924acac0ad18cd4,
title = "Noncontact Vital Sign Detection using 24GHz Two-Dimensional Frequency Scanning Metamaterial Leaky Wave Antenna Array",
abstract = "This paper presents a noncontact vital sign detection scheme using a two-dimensional (2-D) frequency scanning metamaterial leaky wave antenna (L W A) array at 24 GHz band. To avoid the self-resonance issue of interdigital capacitors and the parasitic inductance of shorted stubs, gap capacitors and vialess open stub-loaded resonators are applied to design a one-dimensional (1-D) frequency scanning metamaterial L W A which has a wide scanning angle from -62° to +71° as the frequency increased from 23.4 to 25.4 GHz, in which the broadside is at 24.1 GHz. Four 1-D frequency scanning meta material LWAs and a series feeding network are combined to realize 2-D beam scanning. Noncontact vital sign detections using the proposed 2-D frequency scanning metamaterial L W A array can detect multiple persons with different heights. For demonstration, the respiration rate and heartbeat rate of two persons with standing and sitting postures are measured.",
keywords = "Antenna array, beam scanning, leaky wave antenna, metamaterlal, vital sign detection",
author = "Qun Li and Yonghong Zhang and Wu, {Chung Tse Michael}",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018 ; Conference date: 10-06-2018 Through 15-06-2018",
year = "2018",
month = aug,
day = "17",
doi = "10.1109/MWSYM.2018.8439418",
language = "English (US)",
isbn = "9781538650677",
series = "IEEE MTT-S International Microwave Symposium Digest",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "255--258",
booktitle = "Proceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018",
address = "United States",
}