Flexible Continuous Aperture Arrays

Kuranage Roche Rayan Ranasinghe; Zhaolin Wang; Giuseppe Thadeu Freitas de Abreu; Emil Björnson

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arXiv · 2511.09244

Flexible Continuous Aperture Arrays

Kuranage Roche Rayan Ranasinghe·Zhaolin Wang·Giuseppe Thadeu Freitas de Abreu·Emil Björnson

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Abstract

A novel electromagnetic (EM) structure termed flexible continuous aperture array (FCAPA) is proposed, which incorporates inherent surface flexibility into typical continuous aperture array (CAPA) systems, thereby enhancing the degrees-of-freedom (DoF) of multiple-input multiple-output (MIMO) systems equipped with this technology. By formulating and solving a downlink multi-user beamforming optimization problem to maximize the weighted sum rate (WSR) of the multiple users with FCAPA, it is shown that the proposed structure outperforms typical CAPA systems by a wide margin, with performance increasing with increasing morphability.

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BibTeX RIS

Kuranage Roche Rayan Ranasinghe, Zhaolin Wang, Giuseppe Thadeu Freitas de Abreu, Emil Björnson. 2025-11-12. Flexible Continuous Aperture Arrays. https://arxiv.org/abs/2511.09244

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