Reconstruction of the Excitation of Array Antennas from the Measured Near-Field Intensity using Phase Retrieval

Lord, J.A.; Cook, G.G.; Anderson, A.P.

doi:10.1109/euma.1992.335759

Cited by 7 publications

(2 citation statements)

References 7 publications

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“…J. A. Lord et al [8] proposed a method to reconstruct the array antenna excitation from the measured nearfield data using the phase inversion method. This method iteratively converges when the RMS magnitude and phase change, between the present output and previous output, fall below certain acceptable values.…”

Section: Introductionmentioning

confidence: 99%

Determination of Excitation Amplitude and Phase for Wide-Band Phased Array Antenna Based on Spherical Wave Expansion and Mode Filtering

Song

Zhang

et al. 2022

Electronics

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A new method for solving the excitation amplitude and phase of wide-band phased array antenna is presented, in which spherical wave expansion and mode filtering (SWEMF) techniques are applied for the first time. Different from the previous methods that are required of matrix inversion or optimization iteration, the proposed SWEMF method is a forward calculation process. Thus, the solution is unique, and the result is closer to the true value. On the other hand, the SWEMF method only needs the total radiated field data of the array antenna in a small angular domain to ensure that the operation is simple and efficient. The effectiveness of the SWEMF method is successfully verified by examples of low sidelobe planar and linear arrays. The mean square error of the excitation amplitude can reach −38.88 dB. The range of excitation amplitude error is 0.05 v, and the excitation phase error is within 5.2°. This method takes about 60 s to calculate amplitude and phase at any one time. The feed amplitude and phase can be only calculated with the data in a small angular domain, and when the amount of data is small.

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Section: Introductionmentioning

confidence: 99%

Determination of Excitation Amplitude and Phase for Wide-Band Phased Array Antenna Based on Spherical Wave Expansion and Mode Filtering

Song

Zhang

et al. 2022

Electronics

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“…The usual way is to take near field measurements of the antenna to find the failed element in an array [1][2][3]. It is not practical to apply this convention method in remote systems like spacecraft where the system is inaccessible by humans [4]. However, another way to detect the failed elements is to use test couplers and calibration probes which are expensive and complex to use [5].…”

Section: Introductionmentioning

confidence: 99%

Faulty antenna detection in a linear array using simulated annealing optimization

Boopalan

Ramasamy

Nagi

2020

IJEECS

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<span lang="EN-US">Sonar, radar and communication systems solely depend on antenna arrays for signal attainment. These arrays are capable of producing directional signals which can be steered in a certain direction. Faulty elements in an array will result in distorted radiation pattern with increased sidelobe levels. Far-field faulty antenna detection is necessary due to the near field repairing at complex systems like spacecraft. This paper proposes simulated annealing (SA) optimizing method to find the faulty element’s location in a linear array. In this study, a Chebyshev array is presented with the SA optimization method to detect faulty element location with a random permutation of failure locations tested. This method can successfully detect faulty antenna in a linear array. Even though, this method is developed for linear array it can easily be adapted to a planar array.</span>

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An improved method of diagnosis of failed elements in arrays based on far-field radiation pattern

Miao

Chen

Zhang

et al. 2016

2016 Progress in Electromagnetic Research Symposium (PIERS)

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Reconstruction of the Excitation of Array Antennas from the Measured Near-Field Intensity using Phase Retrieval

Cited by 7 publications

References 7 publications

Determination of Excitation Amplitude and Phase for Wide-Band Phased Array Antenna Based on Spherical Wave Expansion and Mode Filtering

Determination of Excitation Amplitude and Phase for Wide-Band Phased Array Antenna Based on Spherical Wave Expansion and Mode Filtering

Faulty antenna detection in a linear array using simulated annealing optimization

An improved method of diagnosis of failed elements in arrays based on far-field radiation pattern

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