Non-contact Pulse-based Radar with an Excited RF Pulse Generator for Vital-sign Application

Wei Hsien Chen*, Chia Hung Chang, Chien-Nan Kuo, Chia Chin Hsu

*Corresponding author for this work

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

Abstract

This paper presents a pulse-based investigation to generate a serial of sensing pulses for probing the reciprocal movements of heartbeat and chest, respectively. An excited self-contained RF pulse generator with digital assisted controller is used for pulse shaping and performing nanosecond sensing pulses. In addition, the generator is implemented by a common source field-controlled transistor and a contour circuit by micro-strip line. Hence, in this paper, probing pulses and receives the echoes from the investigated subject back and forth by the whole sensing radar based on the monostatic antenna system. The demodulator is utilized to perform the multiplication of the reference probing waves and the return echoes delayed by the time interval between the emitted signal and reflected waves back to the radar module. The following analog baseband processing circuits with 3-stage topology for further amplifying and filtering the received physiological information help to increase the overall signal-to-noise ratio (SNR). The measured results demonstrate that the radiated RF pulses and vital signs are expected.

Original languageEnglish
Title of host publication2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1569-1573
Number of pages5
ISBN (Electronic)9781728134031
DOIs
StatePublished - Jun 2019
Event2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 - Rome, Italy
Duration: 17 Jun 201920 Jun 2019

Publication series

NameProgress in Electromagnetics Research Symposium
Volume2019-June
ISSN (Print)1559-9450
ISSN (Electronic)1931-7360

Conference

Conference2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019
CountryItaly
CityRome
Period17/06/1920/06/19

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