Multi-probe Linear Matrix Inversion Method in Sub-array Internal Element Calibration

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

Abstract

This paper presents a sub-array internal element calibration method using linear matrix inversion method. Multi-probe is employed to detect the E-field distribution of the sub-array under test in the near field. A transmission matrix between the sub-array and probes is built. The key point of this method is getting low condition number transmission matrix. Furthermore, optimization strategy based on genetic algorithm is introduced to obtain more stable matrices. Simulation results show only 4 probes are needed for a 4-element array testing. Finally, a 4-element sub-array composed of rectangular waveguide antennas operating at 3.5 GHz was measured to validate the effectiveness of the proposed method, and the results show a high accuracy-the error between the proposed method and the reference test is less than ±0.2dB, ±2°.

Original languageEnglish
Title of host publication2022 16th European Conference on Antennas and Propagation, EuCAP 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788831299046
StatePublished - 2022
Event16th European Conference on Antennas and Propagation, EuCAP 2022 - Madrid, Spain
Duration: 27 Mar 20221 Apr 2022

Publication series

Name2022 16th European Conference on Antennas and Propagation, EuCAP 2022

Conference

Conference16th European Conference on Antennas and Propagation, EuCAP 2022
Country/TerritorySpain
CityMadrid
Period27/03/221/04/22

Keywords

  • Antenna array calibration
  • OTA measurement
  • condition number
  • linear matrix inversion
  • multi-probe calibration

Fingerprint

Dive into the research topics of 'Multi-probe Linear Matrix Inversion Method in Sub-array Internal Element Calibration'. Together they form a unique fingerprint.

Cite this