基于分布元件谐振器的LTCC带通滤波器

2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition Pub Date : 2013-08-01 DOI:10.1109/IWEM.2013.6888780

C. Shao, Jian‐Xin Chen, H. Tang, Li-Heng Zhou, H. Chu

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引用次数: 0

摘要

本文提出了两种基于多层分布元件谐振腔的低温共烧陶瓷(LTCC)带通滤波器。采用半波长(λg/2)谐振腔垂直折叠形成多层传输线谐振腔，大大减小了电路尺寸。由于LTCC多层谐振器的对称面存在虚地，因此谐振器的特性基本保持不变。为了进行验证，利用该谐振器制作并测量了以3.1GHz为中心的二阶BPF和以2.45GHz为中心的双模BPF，电路尺寸分别为5.1×3.9×1.8 mm3和2.7×2.6×1.6mm3。

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LTCC bandpass filter based on distributed-element resonator

In this paper, two compact low temperature co-fired ceramic (LTCC) bandpass filters (BPFs) based on multi-layer distributed-element resonator are proposed. The employed half-wavelength (λg/2) resonator has been vertically folded to form a multi-layer transmission line resonator to minimize the circuit size significantly. Since there is a virtual ground in the symmetrical plane of the LTCC multi-layer resonator, the characteristic of the resonator keeps almost unchanged. For demonstration, a second-order BPF centered at 3.1GHz and a dual-mode BPF centered at 2.45GHz utilizing the proposed resonator are fabricated and measured, and the circuit sizes are 5.1×3.9×1.8 mm3 and 2.7×2.6×1.6mm3.

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2013 IEEE International Workshop on Electromagnetics, Applications and Student Innovation Competition

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