Inhomogeneous Stepped-Impedance Corrugated Waveguide Low-Pass Filters

R. Levy
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Abstract

Previous work on homogeneous stepped-impedance corrugated filters has been extended to the general inhomogeneous structure, where the waveguide broad dimension is varied in addition to the narrow dimension. It is then possible to design waveguide lowpass filters with specified stopbands free of spurious mode propagation to give rejection levels as high as 100 dB. Additionally, control over the lower cut-off frequency and the ability to match down almost to this frequency facilitates the design of compact waveguide bandpass filters having very broad bandwidths.
非均匀阶跃阻抗波纹波导低通滤波器
以往对均匀阶跃阻抗波形滤波器的研究已经扩展到一般的非均匀结构,其中波导的宽尺寸除了窄尺寸外还会发生变化。然后可以设计具有指定阻带的波导低通滤波器,无杂散模式传播,从而提供高达100 dB的抑制电平。此外,对较低截止频率的控制以及几乎匹配到该频率的能力有助于设计具有非常宽带宽的紧凑型波导带通滤波器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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