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用于第五代（5G）射频前端的具有改进选择性的多模介质谐振器集成波导带通滤波器。

Multimode HMSIW-Based Bandpass Filter with Improved Selectivity for Fifth-Generation (5G) RF Front-Ends.

作者信息

Iqbal Amjad, Jiat Tiang Jun, Kin Wong Sew, Alibakhshikenari Mohammad, Falcone Francisco, Limiti Ernesto

机构信息

Centre For Wireless Technology, Faculty of Engineering, Multimedia University, Cyberjaya 63100, Malaysia.

Electronic Engineering Department, University of Rome "Tor Vergata", Via del Politecnico 1, 00133 Rome, Italy.

出版信息

Sensors (Basel). 2020 Dec 19;20(24):7320. doi: 10.3390/s20247320.

DOI:10.3390/s20247320
PMID:33352800
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7766605/
Abstract

This article presents the detailed theoretical, simulation, and experimental analysis of a half-mode substrate integrated waveguide (HMSIW)-based multimode wideband filter. A third-order, semicircular HMSIW filter is developed in this paper. A semicircular HMSIW cavity resonator is adopted to achieve wide band characteristics. A U-shaped slot (acts as a λ/4 stub) in the center of a semicircular HMSIW cavity resonator and L-shaped open-circuited stubs are used to improve the out-of-band response by generating multiple transmission zeros (TZs) in the stop-band region of the filter. The TZs on either side of the passband can be controlled by adjusting dimensions of a U-shaped slot and L-shaped open-circuited stubs. The proposed filter covers a wide fractional bandwidth, has a lower insertion loss value, and has multiple TZs (which improves the selectivity). The simulated response of filter agrees well with the measured data. The proposed HMSIW bandpass filter can be integrated with any planar wideband communication system circuit, thanks to its planar structure.

摘要

本文介绍了一种基于半模基片集成波导（HMSIW）的多模宽带滤波器的详细理论、仿真和实验分析。本文研制了一种三阶半圆形HMSIW滤波器。采用半圆形HMSIW腔谐振器来实现宽带特性。在半圆形HMSIW腔谐振器的中心采用一个U形槽（充当λ/4短截线）和L形开路短截线，通过在滤波器的阻带区域产生多个传输零点（TZ）来改善带外响应。通带两侧的TZ可以通过调整U形槽和L形开路短截线的尺寸来控制。所提出的滤波器具有较宽的分数带宽、较低的插入损耗值以及多个TZ（这提高了选择性）。滤波器的仿真响应与实测数据吻合良好。由于其平面结构，所提出的HMSIW带通滤波器可以与任何平面宽带通信系统电路集成。

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