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High-Gain In-Situ Active Calibration Target Design for Millimeter-Wave Imaging Systems

Azizi, H ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.1109/AP-S/INC-USNC-URSI52054.2024.10686161
  3. Publisher: 2024
  4. Abstract:
  5. In this paper, the design and measurement of a high gain active calibration target (ACT) for millimeter wave imaging system is presented. Increasing the radar cross section in ACT improves the calibration accuracy. For this purpose, we designed a high-gain array antenna, which consists of 32 planar patch elements. The measured antenna bandwidth is 3.5 GHz (26.5-30 GHz) and the peak realized gain is over 19.5 dBi. In addition, in the ACT design, switching between 4 loads instead of 2 loads is proposed to increase the precision of calibration. The measured results confirm the validity of the designed ACT circuit. The implemented ACT can be used for fast in-situ calibration of millimeter wave imaging systems. © 2024 IEEE
  6. Keywords:
  7. Integrated circuit design ; Radar imaging ; Active calibrations ; Array-antenna ; Calibration accuracy ; Calibration targets ; High gain ; Measurements of ; Millimeter-wave imaging systems ; Planar patch ; Radar cross-sections ; Target design ; Calibration
  8. Source: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) ; 2024 , Pages 653-654 ; 15223965 (ISSN); 979-835036990-8 (ISBN)
  9. URL: https://https-www--scopus--com.ip.ez.smnta.ir/inward/record.uri?eid=2-s2.0-85207092593&doi=10.1109%2fAP-S%2fINC-USNC-URSI52054.2024.10686161&partnerID=40&md5=44874d960c58dd92afb6cee3a4551693