Parallel Calibration Method for Phased Array Based on Multiple-Period Time Modulation

被引：0

作者：

Chen, Ruihua ^{[1
]}

He, Chong ^{[1
]}

Ni, Gang ^{[1
]}

Chen, Jingfeng ^{[1
]}

Geng, Junping ^{[1
]}

Jin, Ronghong ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Array calibration; discrete Fourier transform; multiple-period time modulation; phased array;

D O I：

10.1109/LAWP.2023.3330855

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel parallel calibration method was proposed and verified for phased arrays, by modulating phase shifters of multiple channels with multiple periods. After periodic phase modulation, the amplitude and phase mismatches can be calculated out through analyzing the generated harmonics in the composite signal. Compared with the existing method, two major advantages for the proposed method are as follows. First, the requirement for the dynamic range of the receiver is reduced, improving the calibration accuracy with the same signal-to-noise ratio. Second, the number and position of simultaneously calibrated channels can be flexibly selected. Besides, only one measurement is required to obtain all channel mismatches. Its main computation concentrates on the discrete Fourier transform for several harmonic components. Numeric simulations were provided to verify the effectiveness of the proposed method. An S-band 8-channel phased array was fabricated and tested to examine its performance and accuracy, acquiring root-mean-square-errors of 0.52 dB and 2.41(degrees) in amplitude and phase, respectively.

引用

页码：603 / 607

页数：5

共 16 条

[1]

Bräutigam B, 2007, INT GEOSCI REMOTE SE, P5202

[2]

Hampson G. A., 1999, IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010), P1040, DOI 10.1109/APS.1999.789490

[3] Parallel Calibration Method for Phased Array With Harmonic Characteristic Analysis [J].

He, Chong ;

Liang, Xianling ;

Geng, Junping ;

Jin, Ronghong .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2014, 62 (10) :5029-5036

[4] Fast and Accurate Array Calibration Using a Synthetic Array Approach [J].

Keizer, Will P. M. N. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2011, 59 (11) :4115-4122

[5]

Lier E., 2010, 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010), P271, DOI 10.1109/ARRAY.2010.5613357

[6] Multi-Element Phased Array Calibration Method by Solving Linear Equations [J].

Long, Rui ;

Ouyang, Jun ;

Yang, Feng ;

Han, Wangwang ;

Zhou, Longjian .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2017, 65 (06) :2931-2939

[7] Fast Amplitude-Only Measurement Method for Phased Array Calibration [J].

Long, Rui ;

Ouyang, Jun ;

Yang, Feng ;

Han, Wangwang ;

Zhou, Longjian .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2017, 65 (04) :1815-1822

[8]

Mailloux R. J., 2005, Phased array antenna handbook

[9] An automated process for efficiently measuring the patterns of all elements located in a phased-array antenna [J].

Purdy, DS .

2000 IEEE INTERNATIONAL CONFERENCE ON PHASED ARRAY SYSTEMS AND TECHNOLOGY, PROCEEDINGS, 2000, :521-524

[10]

Shnitkin H, 1990, P 20 EUR MICR C, P247

← 1 2 →