基于宽上阻带可控传输零的紧凑八频带带通滤波器

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.36096

Qian Yang, Shuangyang Liu, K. Xu, A. Zhang

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引用次数: 2

摘要

─提出了一种新的合成方法，利用L-C阶梯原型低通滤波器负载两个对称短桩来设计多带带通滤波器。传输零点(TZs)是由短存根产生的，用来实现多通带。通过控制加载在短存根上的打开存根的数量，可以精确地确定TZs的数量。因此，通过增加开放存根的数量，可以很容易地获得多带BPF。通过优化所提出的滤波器等效电路的L-C值，可以独立地调谐每个通带的中心频率，从而调整TZs。所提出的BPF还具有宽的上阻带。为了演示，设计并制造了一个八频带BPF。实测结果与模拟结果吻合较好。索引项─带通滤波器、多频带、八频带、传输零点、宽上阻带。

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Compact Octa-band Bandpass Filter based on Controllable Transmission Zeros with Wide Upper Stopband

─ A novel synthesis method is proposed to design multi-band bandpass filters (BPFs) using an L-C ladder prototype lowpass filter loaded with two symmetric shorted stubs. The transmission zeros (TZs) are produced by the shorted stubs, which are used to realize multiple passbands. By controlling the number of the open stubs loaded on the shorted stub, the number of TZs is exactly determined. Therefore, multi-band BPF is easy to be obtained by increasing the number of the open stubs. The TZs can be adjusted by optimizing the L-C values of the equivalent circuit of the proposed filter to tune the center frequencies of each passband independently. The proposed BPF also has wide upper stopband. For demonstration, an octa-band BPF is designed and manufactured. The measured results show good agreement with the simulated ones. Index Terms ─ Bandpass filters, multi-band, octa-band, transmission zeros, wide upper stopband.

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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.