Ultracompact 60-GHz CMOS BPF Employing Broadside-Coupled Open-Loop Resonators
Ultracompact 60-GHz CMOS BPF Employing Broadside-Coupled Open-Loop Resonators
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DOI：
10.1109/lmwc.2017.2734771
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发表时间：
2017-09
影响因子：
3
通讯作者：
A. A. El-Hameed-A.;A. Barakat;A. Abdel-Rahman;A. Allam;R. Pokharel
中科院分区：
文献类型：
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作者：
A. A. El-Hameed-A.;A. Barakat;A. Abdel-Rahman;A. Allam;R. Pokharel
这封信介绍了一个60 ghz超紧凑片上带通滤波器（BPF）。设计的滤波器采用独特的结构，由两个重叠的宽边耦合开环谐振器组成，实现了高水平的小型化。此外，每个谐振腔都由金属-绝缘体-金属电容器负载，以进一步小型化。在滤波器结构下构造有缺陷的地结构图，以提高插入损耗。该BPF采用标准的0.18- $\mu \text{m}$互补金属氧化物半导体技术设计和制造，适用于毫米波应用。所制得的BPF芯片尺寸为$240 \ × 225~\mu \text{m}^{2}$（含焊盘）。实验结果与仿真结果吻合较好，表明该滤波器在59.5 GHz中心频率下的IL为3.3 dB，带宽为12.9 GHz。
This letter presents a 60-GHz ultracompact on-chip bandpass filter (BPF). The designed filter is based on a unique structure, which consists of two overlapped broadside-coupled open-loop resonators, achieving a high level of miniaturization. Moreover, each resonator is loaded by a metal–insulator–metal capacitor to get further miniaturization. Defected ground structure pattern is constructed under the filter structure to enhance the insertion loss (IL). This BPF is designed and fabricated using a standard 0.18- $\mu \text{m}$ complementary metal–oxide–semiconductor technology for millimeter-wave applications. The fabricated BPF chip size is $240 \times 225~\mu \text{m}^{2}$ including pads. The measured results agree well with the simulation ones and show that the BPF has an IL of 3.3 dB at 59.5-GHz center frequency, and a bandwidth of 12.9 GHz.