A Fast and Efficient Calibration Method for Phased Array Antennas Using Fourier-Structured Excitation Matrix

Tang, Si Long; Wang, Zhengpeng; Pan, Chong; Su, Rui; Fan, Wei; Gao, Steven

doi:10.1109/tap.2023.3234814

Cited by 7 publications

(2 citation statements)

References 25 publications

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“…For analog beamforming arrays, several characterization and calibration methods based on far-field measurements or coupling between elements have already been reported [7], [8], [9], [10], [11], [12], [13], [14]. Most methods result in a limited set of data, being a single complex coefficient that describes the offset in gain and phase of one element relative to the other elements in the array.…”

Section: Literature Reviewmentioning

confidence: 99%

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Near-Field Calibration Methods for Integrated Analog Beamforming Arrays and Focal Plane Array Feeds

Budé,

Van Hastenberg,

Johannsen

et al. 2023

IEEE Open J. Antennas Propag.

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Active millimeter-wave beamforming arrays and focal plane array antennas require extensive calibration to compensate for impairments, such as phase and gain variations between elements, as well as unintended coupling between changes in gain and phase. When far-field calibration methods are used for calibrating focal plane array antennas, the required size of the anechoic chamber is exceedingly large. For this reason, a near-field calibration method for millimeter-wave analog beamforming array antennas and focal plane array antennas is proposed. Nonidealities of the beamformer integrated circuits with vector modulators are taken into consideration, and a way to reduce the measurement set for vector modulators with high resolution is proposed. This method is both practical and achieves a good calibration as evidenced by measurements of the radiation patterns, and it is suitable for use in an automated factory calibration setup. The important trade-off between the radiated power and side-lobe level is highlighted.

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Section: Literature Reviewmentioning

confidence: 99%

“…In addition, the measurement methods discussed in [7], [8], [9], [10] all rely on far-field methods. For large planar arrays and for FPA systems, issues arise with these measurement methods.…”

Section: Literature Reviewmentioning

confidence: 99%

Near-Field Calibration Methods for Integrated Analog Beamforming Arrays and Focal Plane Array Feeds

Budé,

Van Hastenberg,

Johannsen

et al. 2023

IEEE Open J. Antennas Propag.

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Design and implementation of an S‐band near‐field focused array with high E‐field strength

Li,

Tian,

Cheng

et al. 2024

IET Microwaves Antenna & Prop

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An S‐band near‐field focused array is designed and implemented. Consisting of 4 × 4 metallic Vivaldi elements, the array is designed for focusing the E‐field of several kilovolts per metre within its near‐field region. To minimise the power loss and enhance the synthesis effectiveness, elements are arranged on a sphere surface and oriented towards the sphere centre. When exciting the elements, the waves will be focused to a specific area on the observation plane. By adjusting the excitation phase, the focus position can be tuned. A systematic analysis has been carried out to illustrate the focus scanning process across the entire observation plane. Near‐field two‐dimensional scanning is performed to measure the E‐field distribution of the array. While scanning the focus, the diameter of 3 dB focal area is about 0.3 m, and the maximum field strength in the focus ranges from 1184 to 2129 V/m, which can be used for the radiated susceptibility testing.

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C/X/K/Ka Multibeam Phased-Array Receiver Terminals for Maritime LEO SATCOM

Chen,

Li,

Xie

et al. 2024

2024 IEEE/CIC International Conference on Communications in China (ICCC)

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A Fast and Efficient Calibration Method for Phased Array Antennas Using Fourier-Structured Excitation Matrix

Cited by 7 publications

References 25 publications

Near-Field Calibration Methods for Integrated Analog Beamforming Arrays and Focal Plane Array Feeds

Near-Field Calibration Methods for Integrated Analog Beamforming Arrays and Focal Plane Array Feeds

Design and implementation of an S‐band near‐field focused array with high E‐field strength

C/X/K/Ka Multibeam Phased-Array Receiver Terminals for Maritime LEO SATCOM

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