Design of On-Chip Dual-Band Bandpass Filter Using Lumped Elements in LTCC Technology

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2021-09-20 DOI:10.1109/TCSII.2021.3113790

Liwei Hao;Yongle Wu;Weimin Wang;Yuhao Yang

引用次数: 8

Abstract

In this brief, a novel on-chip dual-band bandpass filter (D-BPF) with two independently controllable transmission zeros (TZs) is proposed. Based on resonators transformation, the schematic and design procedure of the filter are presented. Using even-/odd-mode analysis, analytical equations are used for demonstration of the theory. As an example, a 3.32/5.17-GHz D-BPF with 3-dB fractional bandwidth (3-dB FBW) of 25.45%/14.20% for 5G applications is designed, fabricated, and measured. The size of the filter in low-temperature cofired ceramic (LTCC) is only 11.4 mm * 6 mm * 0.94 mm. The filter has been successfully measured with the minimum insertion loss of 1.38/1.53-dB and high return loss of 28/23-dB at the center frequency.

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LTCC技术中采用集总元件的片上双频带通滤波器的设计

本文提出了一种具有两个独立可控传输零点（TZ）的新型片上双频带通滤波器（D-BPF）。在谐振腔变换的基础上，给出了滤波器的原理图和设计步骤。利用偶/奇模态分析，用解析方程对理论进行了论证。例如，设计、制造和测量了用于5G应用的3.32/5.17-GHz D-BPF，其3dB分数带宽（3dB FBW）为25.45%/14.20%。低温共烧陶瓷（LTCC）滤波器的尺寸仅为11.4mm*6mm*0.94mm。该滤波器已成功测量，在中心频率下的最小插入损耗为1.38/1.53dB，高回波损耗为28/23dB。

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

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.