Scholarlink

<p>This paper presents a high-performance dual-band metamaterial absorber (MMA) that demonstrates strong absorption peaks within the X-band and K-band frequency ranges. The absorber incorporates a distinctive design characterized by a central X-shaped structure, which is created by the intersection of two diagonally positioned conductive arms. This is further enhanced by peripheral conductive traces that establish a closed-loop configuration, optimizing electromagnetic resonance. Each quadrant of the unit cell displays mirrored block patterns, which guarantees four-fold rotational symmetry. The MMA structure consists of a radiating patch, a ground plane, and a polyimide substrate with a thickness of 0.1 mm. Results from the simulation demonstrate two significant absorption peaks located at 11.4 GHz and 19.2 GHz, with absorption levels surpassing 90%. The analysis of the absorption mechanism indicates the stability of the absorber concerning changes in the angle of incidence. Experimental validation indicates a significant correlation between the simulated and measured absorptivity, thereby demonstrating the efficacy of the proposed design. The developed MMA demonstrates significant potential for radar and various high-frequency applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Compact High-Efficiency Dual-Band Metamaterial Absorber with Polarization Insensitivity for X- and K-Band Radar Applications

  • 期刊论文

  • 发表日期：

    2025年5月13日

查看全文
  • Bhupathi Ajay Kumar,
  • Yarlagadda Rama Krishna,
  • Avala Mallikarjuna Prasad

摘要

This paper presents a high-performance dual-band metamaterial absorber (MMA) that demonstrates strong absorption peaks within the X-band and K-band frequency ranges. The absorber incorporates a distinctive design characterized by a central X-shaped structure, which is created by the intersection of two diagonally positioned conductive arms. This is further enhanced by peripheral conductive traces that establish a closed-loop configuration, optimizing electromagnetic resonance. Each quadrant of the unit cell displays mirrored block patterns, which guarantees four-fold rotational symmetry. The MMA structure consists of a radiating patch, a ground plane, and a polyimide substrate with a thickness of 0.1 mm. Results from the simulation demonstrate two significant absorption peaks located at 11.4 GHz and 19.2 GHz, with absorption levels surpassing 90%. The analysis of the absorption mechanism indicates the stability of the absorber concerning changes in the angle of incidence. Experimental validation indicates a significant correlation between the simulated and measured absorptivity, thereby demonstrating the efficacy of the proposed design. The developed MMA demonstrates significant potential for radar and various high-frequency applications.