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Phase Spectrum Design for Multi-Beam Analog Beamforming in mmWave Planar Arrays

  • Jiazhe Li*
  • , Miao Li*
  • , Shuai Yuan
  • , Xiaoying Zhang
  • , Heng Dong*
  • , Zhuoming Li*
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology
  • China Aerospace Science and Technology Corporation

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

Abstract

This paper investigates the relationship between the beam pattern spectrum and the analog beamformer of antenna arrays under the constant modulus constraint. The analog beamforming vector is first modeled as a non-stationary complex exponential signal, from which we derive an explicit analytical relationship between the beamformer and the phase spectrum of the resulting beam pattern. Leveraging this relationship, we propose a multi-beam analog beamforming algorithm that enables simultaneous control over both the amplitude and phase spectra of individual sub-beams. This capability offers enhanced flexibility for integrated sensing and communications in analog array architectures.

Original languageEnglish
Title of host publication2025 IEEE Workshop on Signal Processing Systems, SiPS 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331598310
DOIs
StatePublished - 2025
Externally publishedYes
Event2025 IEEE Workshop on Signal Processing Systems, SiPS 2025 - Hong Kong, Hong Kong
Duration: 1 Nov 20254 Nov 2025

Publication series

Name2025 IEEE Workshop on Signal Processing Systems, SiPS 2025

Conference

Conference2025 IEEE Workshop on Signal Processing Systems, SiPS 2025
Country/TerritoryHong Kong
CityHong Kong
Period1/11/254/11/25

Keywords

  • Beamforming
  • integrated sensing and communication (ISAC)
  • millimeter wave
  • phase spectrum
  • planar array

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