Design of Hybrid Bandpass Filter Chips with High Selectivity and Wideband Using IPD and FBAR Technology

IF 0.9 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2024-05-25 DOI:10.1155/2024/9928016

Keyan Li, Yongle Wu, Zhiguo Lai, Qinghua Yang, Weimin Wang, Yuhao Yang

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引用次数: 0

Abstract

A novel hybrid bandpass filter (BPF) with wideband and high selectivity is proposed in this paper. The hybrid BPF is composed of two film bulk acoustic resonator (FBAR) cells and three lumped component resonators realized by the integrated passive device (IPD) technology. The ABCD matrix to S-parameters matrix method is used to calculate the frequency response of the BPF. Moreover, the expressions of transmission zeros (TZs) have been extracted. In the design process, an iterative design approach is proposed to improve the circuit and layout of the hybrid filter based on the packaged acoustic-electric hybrid simulation effect. Finally, two parts of the filter are packaged based on the flip-chip method, and two prototypes for the BPF are measured. The measured results of two chips with 3 dB fractional bandwidth of 13.7% and 15.8% are designed and fabricated, which verifies the validity of the proposed design principle.

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利用 IPD 和 FBAR 技术设计具有高选择性和宽带的混合带通滤波器芯片

本文提出了一种具有宽带和高选择性的新型混合带通滤波器（BPF）。该混合带通滤波器由两个薄膜体声谐振器（FBAR）单元和三个通过集成无源器件（IPD）技术实现的块状组件谐振器组成。采用 ABCD 矩阵到 S 参数矩阵法计算 BPF 的频率响应。此外，还提取了传输零点（TZ）的表达式。在设计过程中，根据封装的声电混合模拟效果，提出了一种迭代设计方法来改进混合滤波器的电路和布局。最后，根据倒装芯片方法封装了两部分滤波器，并测量了两个 BPF 原型。测量结果表明，设计和制造的两个芯片的 3 dB 分数带宽分别为 13.7% 和 15.8%，这验证了所提设计原理的正确性。

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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来源期刊

International Journal of RF and Microwave Computer-Aided Engineering 工程技术-工程：电子与电气

CiteScore

4.00

自引率

23.50%

发文量

489

审稿时长

3 months

期刊介绍： International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.