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Updated: Jun 19, 2026
06:51
Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
Metasurface Design Paradigm Inspired by Connected Component Analysis to Realize Broadband Surface Wave Manipulation
Shuo Sun1,2,3,4, Xiuping Li1,2,3,4, Zihang Qi1,2,3,4
1State Key Laboratory of Information Photonics and Optical Communications, Beijing 100876, China.
ACS Applied Materials & Interfaces
|March 3, 2026
Summary
This study introduces a novel gradient metasurface (GM) design for broadband surface wave (SW) radiation control. The method uses connected component analysis (CCA) for efficient design, achieving stable beams and high aperture efficiency.
Area of Science:
- Electromagnetics and Metamaterials
- Antenna Theory and Design
- Computational Electromagnetics
Background:
- Controlling surface wave (SW) radiation for broadband applications requires gradient metasurfaces (GMs) with flat phase response and operation within the SW bandgap.
- Existing methods often struggle to meet these simultaneous requirements efficiently, necessitating new design paradigms.
Purpose of the Study:
- To develop a novel, efficient broadband gradient metasurface (GM) design paradigm for surface wave (SW) radiation control.
- To enable stable broadband beam formation and efficient radiation by simultaneously addressing phase response and bandgap requirements.
Main Methods:
- A new GM design paradigm inspired by connected component analysis (CCA) is proposed.
- Non-convex optimization with prior GM topology information constrains solutions for low data volume optimization.
- Integration of uniplanar compact electromagnetic bandgap theory and CCA for efficient bandgap design and topology extraction, avoiding eigenmode solving.
Main Results:
- Two prototypes (pencil-beam and flat-top-beam) validated the paradigm, showing high consistency between simulated and measured results.
- The pencil-beam antenna achieved 54% aperture efficiency and 25% 3-dB gain bandwidth.
- The flat-top-beam antenna demonstrated stable flat-top beam characteristics from 9-11 GHz.
Conclusions:
- The proposed CCA-inspired GM design paradigm offers a highly efficient and effective approach for broadband SW radiation control.
- This work presents a novel technical pathway for designing advanced antennas with excellent broadband performance and high design efficiency.
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