Single Conversion Stepped-Frequency Continuous-Wave Radar Using Self-Injection-Locking Technology

Wei Chih Su, Mu Cyun Tang, Rezki El Arif, Tzyy Sheng Horng, Fu Kang Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Citations (Scopus)

Abstract

This paper presents a single conversion stepped-frequency continuous-wave (SCSFCW) radar that uses self-injection-locking technology to achieve high sensitivity, Doppler resolution and range resolution. Moreover, the radar is capable of extracting tiny Doppler shifts from different range bins, so it has great potential to monitor vital signs of multiple people simultaneously. In the experiment, a 7.95-8.95 GHz SCSFCW prototype radar was constructed by an RF up-down converter pumped with a 5.5-6.5 GHz stepped chirp signal and a 2.45 GHz IF self-injection-locked (SIL) radar to successfully localize and recover two individual Doppler signals, each caused by either a small periodical movement of a metal plate or a physiological movement of a human body.

Original languageEnglish
Title of host publication2019 IEEE MTT-S International Microwave Symposium, IMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages420-423
Number of pages4
ISBN (Electronic)9781728113098
DOIs
Publication statusPublished - Jun 2019
Externally publishedYes
Event2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States
Duration: 2 Jun 20197 Jun 2019

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2019-June
ISSN (Print)0149-645X

Conference

Conference2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Country/TerritoryUnited States
CityBoston
Period2/06/197/06/19

Keywords

  • SFCW radar
  • SIL radar
  • localization
  • vital signs

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