K-Band Frequency Tunable Substrate-Integrated-Waveguide Resonator Filter With Enhanced Stopband Attenuation
K-Band Frequency Tunable Substrate-Integrated-Waveguide Resonator Filter With Enhanced Stopband Attenuation
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DOI：
10.1109/tmtt.2015.2483495
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发表时间：
2015-11-01
影响因子：
4.3
通讯作者：
Lee, Juseop
中科院分区：
文献类型：
--
作者：
Lee, Boyoung;Nam, Seunggoo;Lee, Juseop
本文提出了一种K波段基片集成波导谐振腔带通滤波器结构。该滤波器首次使用了谐振器的反对称模式。介绍了一种利用反对称模的谐振腔外耦合结构的设计方法。此外，一种方法，用于抑制邻近的通带附近的谐振被证明。这种方法可以在不增加损耗的情况下提高阻带衰减性能。所提出的滤波器可以通过调整调谐元件来调谐中心频率。为了验证所提出的滤波器结构和设计方法，我们已经制作和测量了一个K波段滤波器，并演示了高阶滤波器的设计。
In this paper, we present a K-band substrate-integrated waveguide resonator bandpass filter structure. The filter uses an antisymmetric mode of the resonator for the first time. A design method for the external coupling structure of the resonator utilizing the antisymmetric mode is described. In addition, a methodology for suppressing neighboring resonances close to the passband is demonstrated. This method can enhance stopband attenuation performance without additional loss. The proposed filter can tune the center frequency by adjusting tuning components. In order to verify the proposed filter structure and design method, we have fabricated and measured a K-band filter and demonstrated higher order filter design.