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Balanced bandpass filter using TE01δ-mode dielectric resonator
Electromagnetics ( IF 0.6 ) Pub Date : 2019-03-26 , DOI: 10.1080/02726343.2019.1595384
Jugul Kishor 1 , Binod K. Kanaujia 2 , Santanu Dwari 3 , Ashwani Kumar 4
Affiliation  

ABSTRACT In this paper, a surface-mounted dielectric resonator-based balanced bandpass filter is proposed. By utilizing the TE01δ mode as a dominant mode of the cylindrical dielectric resonator, it can be excited in differential mode to achieve good common-mode suppression in differential filter passband. To validate the design idea, a second-order balanced narrowband bandpass filter with center frequency at 5.53 GHz has been designed, fabricated, and measured. The design parameters of the proposed filter are: insertion loss 0.2, 3 dB Bandwidth (BW) 67.1 MHz, and return loss 23 dB, and common-mode separation is more than 30 dB. There is good agreement between the simulated and measured results.

中文翻译:

使用 TE01δ 模式介质谐振器的平衡带通滤波器

摘要 在本文中,提出了一种基于表面贴装介质谐振器的平衡带通滤波器。利用TE01δ模作为圆柱介质谐振器的主模,可以在差模下激励,在差动滤波器通带内实现良好的共模抑制。为了验证设计思想,我们设计、制造并测量了中心频率为 5.53 GHz 的二阶平衡窄带带通滤波器。所提出滤波器的设计参数为:插入损耗0.2,3 dB带宽(BW)67.1 MHz,回波损耗23 dB,共模分离度大于30 dB。模拟结果和测量结果之间有很好的一致性。
更新日期:2019-03-26
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