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<p>This paper presents a compact 90° TE₀₁-mode waveguide bend design based on optimized cross-sectional geometry and bending path selection for high-power applications. The waveguide cross-section employs a highly deformed circular shape with a specific profile, aiming to achieve high power-handling capacity while suppressing unwanted mode coupling. A parabolic bending path is adopted to achieve high-efficiency turning in a compact structure. The overall bend radius of the design is 140&#xa0;mm, and the design achieves a relative bandwidth of 24.8% (26.5–34&#xa0;GHz) while maintaining a transmission efficiency of over 95%. Compared with conventional TE₀₁ waveguide bends, this method significantly reduces the size (by approximately 70%) without compromising high-power performance.</p>

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Design of a Wideband Compact TE₀₁-Mode Bend Using Highly Deformed Circular Waveguide

  • 期刊论文

  • 发表日期：

    2026年1月14日

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  • Meiling Ou,
  • Zewei Wu

摘要

This paper presents a compact 90° TE₀₁-mode waveguide bend design based on optimized cross-sectional geometry and bending path selection for high-power applications. The waveguide cross-section employs a highly deformed circular shape with a specific profile, aiming to achieve high power-handling capacity while suppressing unwanted mode coupling. A parabolic bending path is adopted to achieve high-efficiency turning in a compact structure. The overall bend radius of the design is 140 mm, and the design achieves a relative bandwidth of 24.8% (26.5–34 GHz) while maintaining a transmission efficiency of over 95%. Compared with conventional TE₀₁ waveguide bends, this method significantly reduces the size (by approximately 70%) without compromising high-power performance.