An Improved Complex Signal-Based Calibration Method for Beam-Steering Phased Array

Fengchun Zhang; Huaqiang Gao; Zhengpeng Wang; Wei Fan

doi:10.1109/LAWP.2021.3106766

An Improved Complex Signal-Based Calibration Method for Beam-Steering Phased Array

Fengchun Zhang
, Huaqiang Gao
, Zhengpeng Wang
, Wei Fan^*

^*Corresponding author for this work

School of Electronic and Information Engineering

Aalborg University
BeijingUniversity of Posts and Telecommunications

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Phased array calibration is essential to ensureaccurate array radiation performance. This letter proposes an improved calibration method based on complex signals in an anechoic chamber for phased arrays that can only operate in its default beam-steering mode with limited beam-steering angular ranges. The basic principle is to convert the array factors associated with the multiprobe locations into the beam-steering factors of the array, which can virtually widen the beam-steering angular range. The broadened angular range can lower the condition number of the phase setting matrix and therefore improve the calibration accuracy. Both theoretical derivations and measurement validation are provided to demonstrate the effectiveness and enhancement of the proposed method.

Original language	English
Pages (from-to)	2161-2165
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	20
Issue number	11
DOIs	https://doi.org/10.1109/LAWP.2021.3106766
State	Published - 1 Nov 2021

Keywords

Array calibration
beam-steering angular range
millimeter-wave phased array
over-the-air testing

Access to Document

10.1109/LAWP.2021.3106766

Cite this

@article{2e9be0f1a02c479abcd1b32f476a7529,

title = "An Improved Complex Signal-Based Calibration Method for Beam-Steering Phased Array",

abstract = "Phased array calibration is essential to ensureaccurate array radiation performance. This letter proposes an improved calibration method based on complex signals in an anechoic chamber for phased arrays that can only operate in its default beam-steering mode with limited beam-steering angular ranges. The basic principle is to convert the array factors associated with the multiprobe locations into the beam-steering factors of the array, which can virtually widen the beam-steering angular range. The broadened angular range can lower the condition number of the phase setting matrix and therefore improve the calibration accuracy. Both theoretical derivations and measurement validation are provided to demonstrate the effectiveness and enhancement of the proposed method.",

keywords = "Array calibration, beam-steering angular range, millimeter-wave phased array, over-the-air testing",

author = "Fengchun Zhang and Huaqiang Gao and Zhengpeng Wang and Wei Fan",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.",

year = "2021",

month = nov,

day = "1",

doi = "10.1109/LAWP.2021.3106766",

language = "英语",

volume = "20",

pages = "2161--2165",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "11",

}

TY - JOUR

T1 - An Improved Complex Signal-Based Calibration Method for Beam-Steering Phased Array

AU - Zhang, Fengchun

AU - Gao, Huaqiang

AU - Wang, Zhengpeng

AU - Fan, Wei

PY - 2021/11/1

Y1 - 2021/11/1

N2 - Phased array calibration is essential to ensureaccurate array radiation performance. This letter proposes an improved calibration method based on complex signals in an anechoic chamber for phased arrays that can only operate in its default beam-steering mode with limited beam-steering angular ranges. The basic principle is to convert the array factors associated with the multiprobe locations into the beam-steering factors of the array, which can virtually widen the beam-steering angular range. The broadened angular range can lower the condition number of the phase setting matrix and therefore improve the calibration accuracy. Both theoretical derivations and measurement validation are provided to demonstrate the effectiveness and enhancement of the proposed method.

AB - Phased array calibration is essential to ensureaccurate array radiation performance. This letter proposes an improved calibration method based on complex signals in an anechoic chamber for phased arrays that can only operate in its default beam-steering mode with limited beam-steering angular ranges. The basic principle is to convert the array factors associated with the multiprobe locations into the beam-steering factors of the array, which can virtually widen the beam-steering angular range. The broadened angular range can lower the condition number of the phase setting matrix and therefore improve the calibration accuracy. Both theoretical derivations and measurement validation are provided to demonstrate the effectiveness and enhancement of the proposed method.

KW - Array calibration

KW - beam-steering angular range

KW - millimeter-wave phased array

KW - over-the-air testing

UR - https://www.scopus.com/pages/publications/85113834872

U2 - 10.1109/LAWP.2021.3106766

DO - 10.1109/LAWP.2021.3106766

M3 - 文章

AN - SCOPUS:85113834872

SN - 1536-1225

VL - 20

SP - 2161

EP - 2165

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 11

ER -

An Improved Complex Signal-Based Calibration Method for Beam-Steering Phased Array

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this