High‐performance wide stop band low‐pass filter using a vertically coupled DGS‐DMS‐resonators and interdigital capacitor
High‐performance wide stop band low‐pass filter using a vertically coupled DGS‐DMS‐resonators and interdigital capacitor
复制标题
DOI：
10.1002/mop.28031
复制
发表时间：
2014-01
影响因子：
1.5
通讯作者：
A. Boutejdar;A. Omar;E. Burte
中科院分区：
文献类型：
--
作者：
A. Boutejdar;A. Omar;E. Burte
使用简单的多层技术和缺陷接地结构缺陷微带结构（DGS-DMS）方法，提出了一种新型宽阻带低通滤波器，并使用耦合 DMS 和 DGS 谐振器实现。该滤波器由两个级联 λ/2-DMS 谐振器组成，它们蚀刻在 50 Ω 微带馈线上，并与两个级联 DGS 谐振器垂直耦合。与 DMS 元件相反，它们被蚀刻在地平面上。所提出的使用 DMS 和 DGS 的小型化低通滤波器已在尺寸为 3.3 cm × 1.5 cm 的基板上进行了模拟和制造。基板的相对介电常数为3.38，厚度为0.813mm。叉指-DGS-DMS LPF 实现了小于 0.5 dB 的插入损耗和宽阻带抑制，在高达 8 GHz 时总体衰减为 20 dB。模拟和测量结果显示出良好的一致性并验证了所提出的方法。这种滤波器结构有望广泛应用于微波集成电路和现代通信系统中。 © 2014 Wiley periodicals, Inc. 微波光学技术快报 56:87–91，2014 年
Using the simple multilayer technique and defected ground structure‐defected microstrip structure (DGS‐DMS) methods, a novel wide stop band low‐pass filter is proposed and implemented using coupled DMS and DGS resonators. The filter consists of two cascaded λ/2‐DMS‐resonators, which are etched on a 50 Ω microstrip feed line and vertically coupled with two cascaded DGS resonators. They are etched, opposed to the DMS‐Elements, on the ground plane. The proposed miniaturized low‐pass filters using DMS and DGS have been simulated and fabricated on a substrate with dimensions of 3.3 cm × 1.5 cm. The substrate has a relative dielectric constant of 3.38 and a thickness of 0.813 mm. The interdigital‐DGS‐DMS LPF achieved insertion loss less than 0.5 dB and a wide rejection in the stop band with overall 20 dB attenuation up to 8 GHz. The simulated and measured results show good agreement and validate the proposed approach. Such filter structures are expected to be applied widely for microwave integrated circuit and in modern communication systems. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:87–91, 2014