https://scholars.lib.ntu.edu.tw/handle/123456789/640363
標題: | Noncontact Vital Sign Detection using 24GHz Two-Dimensional Frequency Scanning Metamaterial Leaky Wave Antenna Array | 作者: | Li, Qun Zhang, Yonghong CHUNG-TSE WU |
關鍵字: | Antenna array | beam scanning | leaky wave antenna | metamaterlal | vital sign detection | 公開日期: | 17-八月-2018 | 卷: | 2018-June | 來源出版物: | IEEE MTT-S International Microwave Symposium Digest | 摘要: | 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. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/640363 | ISBN: | 9781538650677 | ISSN: | 0149645X | DOI: | 10.1109/MWSYM.2018.8439418 |
顯示於: | 電機工程學系 |
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