Pattern Analysis of Conformal Antenna Arrays via the Characteristic Modes of Isolated Elements

Authors

  • Yuanchen Zeng Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China
  • Shuo Zhang Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China
  • Shunxi Lou Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China

DOI:

https://doi.org/10.13052/2021.ACES.J.361207

Keywords:

Conformal array, characteristic modes, coordinate transformation, mutual coupling.

Abstract

A simple pattern analysis method is presented for conformal antenna arrays, considering mutual coupling effects based on the characteristic modes of isolated elements. There are many methods to analyze the performance of conformal antenna arrays, but they seldom provide a clear insight into the coupling mechanism. Thus, the overall characteristic modes of the conformal array are calculated from the characteristic modes of the isolated elements and coordinate transformation, which are different from the traditional modal analysis for the entire array. And the radiation field of the conformal array is given. The modal coupling matrix which depends on the structural parameters and relative pose of conformal elements is used to characterize the mutual coupling effect between elements and explain the coupling mechanism from the perspective of the characteristic currents. Finally, the effectiveness and efficiency of the proposed method is verified by some numerical examples.

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Author Biographies

Yuanchen Zeng, Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China

Yuanchen Zeng was born in Shaanxi, China, in 1996. He received the B.S. degree in mechanical design manufacture and automation major from Xidian University, Xi’an, China, in 2017, where he is currently pursuing the Ph.D. degree in electromechanical engineering. His current research interests include conformal arrays and computational electromagnetics.

Shuo Zhang, Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China

Shuo Zhang was born in Heilongjiang, China, in 1993. She received the B.S. degree in automation technology from Xidian University, Xi’an, China, in 2016, where she is currently pursuing the Ph.D. degree in electromechanical engineering. Her current research interests include the theory of microwave power transmission, antenna arrays, and aperture antennas.

Shunxi Lou, Key Laboratory of Electronic Equipment Structure Design of Ministry of Education Xidian University, Xi’an, Shaanxi 710071, China

Shunxi Lou was born in Hebei, China, in 1992. He received the B.S. and Ph.D. degrees from Xidian University, Xi’an, China, in 2015, and 2021, respectively. His current research interests include the theory of characteristic modes, antenna arrays, and computational electromagnetics.

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Published

2022-03-10

How to Cite

[1]
Y. . Zeng, S. . Zhang, and S. . Lou, “Pattern Analysis of Conformal Antenna Arrays via the Characteristic Modes of Isolated Elements”, ACES Journal, vol. 36, no. 12, pp. 1562–1568, Mar. 2022.

Issue

2021: Vol 36 Iss 12

Section

Articles

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