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A Digital Simulation Model of Broadband Phased Array RF System and Its Application.

Jia Ding1,2, Huaizong Shao1, Jianxing Lv2

  • 1School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

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Summary

This study presents a simulation model for broadband phased array RF systems, enhancing beam pointing accuracy through a novel delay control correction strategy. The developed model offers an efficient tool for optimizing phased array RF system design.

Keywords:
behavior-level simulation modeldelay control schemephased array systemsimulation software

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Area of Science:

  • Electrical Engineering
  • Electromagnetics and RF Engineering

Background:

  • Broadband phased array RF links require precise design and validation for optimal performance.
  • Simulation models are crucial for reducing R&D time and costs in complex RF system development.

Purpose of the Study:

  • To develop a behavioral-level signal simulation model for the RFS04 broadband phased array RF system.
  • To analyze the impact of design parameters on antenna performance and accuracy.
  • To propose and validate a delay control correction strategy for improved beam pointing.

Main Methods:

  • Constructed a behavioral-level signal simulation model based on the RFS04 system.
  • Generated antenna patterns and analyzed beam pointing accuracy versus delay quantization.
  • Calculated 3 dB beam coverage and explored multi-phased array synthesis.
  • Analyzed angle measurement accuracy against signal-to-noise ratio.
  • Measured delay module parameters and developed a correction strategy.

Main Results:

  • The simulation model accurately generated RFS04 antenna patterns.
  • A direct relationship between beam pointing accuracy and delay quantization bit number was identified.
  • The developed delay correction strategy significantly improved beam pointing accuracy in simulations.
  • Laboratory testing confirmed the effectiveness of the correction strategy in enhancing delay accuracy.

Conclusions:

  • The integrated simulation model provides an efficient and accurate tool for broadband phased array RF system design and optimization.
  • The validated delay correction strategy enhances the precision of phased array antenna scanning.
  • This research contributes to the advancement of high-performance RF system development.