Interleaved concentric rings array based on subarray element excitation-matching

Longjun Li; Zhigang Gu; Jikuan Hu; Qi Qi

doi:10.1117/12.3004885

20 October 2023 Interleaved concentric rings array based on subarray element excitation-matching

Longjun Li, Zhigang Gu, Jikuan Hu, Qi Qi

Proceedings Volume 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023); 129161G (2023) https://doi.org/10.1117/12.3004885
Event: Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 2023, Kunming, China

Abstract

Interleaved antenna arrays are widely used in radar tracking, navigation, wireless communications, and location, etc. In order to make use of a given antenna aperture of concentric rings array (CRA) efficiently, an interleaved method for interlacing uniform CRA is proposed in this paper based on Subarray element Excitation-Matching (SEM). Due to Fourier-Bessel transform mapping between array factor and uniform CRA antenna excitation, in our method, the array factor of CRA is first calculated and its sidelobe region is then amended accordingly to meet user-defined sidelobe level threshold. In the next steps, the updated antenna element excitation coefficients are acquired with 2-D fast Fourier transform (FFT) and cubic interpolation method. Finally, with a careful exploration of the excitation distributions, the antenna positions of thinned subarrays are deliberately chosen in an alternating manner, which ensures that a similar pattern can be achieved with different thinned subarrays. The performance of the proposed interleaved CRA design method is evaluated by numerical simulation.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Longjun Li, Zhigang Gu, Jikuan Hu, and Qi Qi "Interleaved concentric rings array based on subarray element excitation-matching", Proc. SPIE 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 129161G (20 October 2023); https://doi.org/10.1117/12.3004885

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KEYWORDS

Antennas

Design and modelling

Interpolation

Scanning electron microscopy

Fourier transforms

Radio propagation

Chemical elements

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