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Thermal Deformation Modeling for Phased Array Antenna Compensation Control.

Hui Liu1, Wei Wang2, Dafeng Tang1

  • 1School of Automation, Xi'an University of Posts & Telecommunications, Xi'an 710121, China.

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Summary
This summary is machine-generated.

A new method predicts phased array antenna (PAA) thermal deformation using temperature data. This approach simplifies modeling and improves accuracy for thermal compensation control.

Keywords:
data-driven modelingerror compensationfinite element analysisphased array antennathermal deformation

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Area of Science:

  • Antenna Engineering
  • Materials Science
  • Computational Mechanics

Background:

  • Phased array antennas (PAAs) require thermal compensation to correct errors from panel thermal deformation.
  • Direct measurement of PAA thermal deformation during operation is challenging due to operational constraints.
  • Predicting thermal deformation is complicated by factors like structural shape, assembly, and material properties, which are difficult to measure in complex PAAs.

Purpose of the Study:

  • To develop a novel method for predicting PAA thermal deformation.
  • To overcome the difficulties in measuring complex PAA parameters for thermal deformation modeling.
  • To enhance the accuracy of thermal compensation control for PAAs.

Main Methods:

  • Proposed a comprehensive influence parameters (CIPs)-finite element method (FEM) approach.
  • Extracted the influence of various parameters on thermal deformation from experimental temperature and deformation data.
  • Built a predictive thermal deformation model using the CIPs-FEM method.

Main Results:

  • The CIPs-FEM method effectively extracts parameter influences from measurement data.
  • A high-accuracy thermal deformation prediction model was successfully developed.
  • The proposed method significantly reduces the complexity of thermal deformation modeling for PAAs.

Conclusions:

  • The CIPs-FEM method offers a practical solution for predicting PAA thermal deformation.
  • This approach enhances the feasibility and accuracy of thermal compensation control systems.
  • The study simplifies the modeling process for complex antenna systems.