A low-power and low-cost monostatic radar based on a novel 2-port transceiver chain

Daniel Rodriguez, Changzhi Li

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

Abstract

A low-power and low-cost 5.8-GHz 2-port monostatic Doppler radar was designed, fabricated and tested for small motion detection. The implemented RF board is based on a new radar architecture that features a compact size and only one active device. Unlike conventional board level radar systems, it does not use separate Tx/Rx signal chains. With a single antenna for Tx/Rx, it does not use any low noise amplifier (LNA) or circulator in the RF front-end. Besides the local oscillator (LO), there is no more active device that consumes DC power. The fabricated radar system has dimensions of 20.6 mm × 26.5 mm (L×W) and a power consumption of 290 mW in continuous operation, which could be significantly reduced based on duty cycling. In addition, a low conversion loss of 3.6 dB was achieved. The high sensitivity of the proposed architecture was demonstrated by successfully measuring a 50 μm sinusoidal movement.

Original languageEnglish
Title of host publication2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages9-12
Number of pages4
ISBN (Electronic)9781728133553
DOIs
StatePublished - Jan 2020
Event2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2020 - San Antonio, United States
Duration: Jan 26 2020Jan 29 2020

Publication series

Name2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2020

Conference

Conference2020 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2020
CountryUnited States
CitySan Antonio
Period01/26/2001/29/20

Keywords

  • Doppler radar
  • Interferometric radar
  • Internet of things
  • Schottky diode

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