Measuring Linear Array Mutual Coupling Terms and Element Positions From Embedded Element Patterns

doi:10.1109/tap.2026.3692659

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Measuring Linear Array Mutual Coupling Terms and Element Positions From Embedded Element Patterns

2026-05-18

PRE

Jacki Gilmore

Michele Pugno

Annie Cuyt

DOI：10.1109/tap.2026.3692659

Original

Original request for help

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Abstract

En 中文

This article presents a method to derive the antenna element positions and S-parameters of linear antenna arrays of identical elements from measurements of the embedded element patterns (EEPs). The problem is formulated as an exponential data modeling problem, and validated exponential analysis (VEXPA) is used to extract the element positions and the S-parameters. Results in the calculation of the element positions indicate combined absolute-relative errors (i.e., absolute error divided by 1+ the exact element position) of less than 0.1% for a synthetic example of an 11-element array, and less than 0.2% for a four-element experimental example. The combined absolute-relative error in the calculation of the coefficients from which the S-parameters are derived is <0.002 for the synthetic example. There is excellent agreement between S-parameters directly measured with a VNA and S-parameters determined using the proposed method.

Keywords:

Antenna array

antenna measurements

exponential analysis

mutual coupling

validated exponential analysis (VEXPA)

Journal

IEEE Transactions on Antennas and Propagation

IF:

5.8

Papers:

677

Citations:

6.8W

Organization

university of stirling

Scholars:

552

Papers: 332

Citations: 0

stellenbosch university

Scholars:

1.4W

Papers: 1.2W

Citations: 17

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