This paper presents a compact and the low-cost coupled line band-pass filter with application to future generation millimetre-waves and 5G communications. The proposed approach of the filter design is based on the coupled-line and centre tapped upper and lower stepped impedance resonators. These resonators generate the sharp rejection, wide bandwidth, and abet to realize the compact filter. A detailed theoretical as well as the numerical analysis of the filter has also been investigated. As a demonstration, the proposed band-pass filter configuration has been designed and fabricated at the 33.5 GHz frequency using a low-cost PCB technique. It has observed that the proposed filter, results in a better return loss and the low insertion loss. The experimental results has been presented and compared with the simulated results and has found quite satisfactory. Moreover the results obtained validate a good agreement with each other.

中文翻译：

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基于毫米波通信的基于步进阻抗谐振器的紧凑型新颖耦合线微带通滤波器

本文提出了一种紧凑且低成本的耦合线带通滤波器，可应用于下一代毫米波和5G通信中。所提出的滤波器设计方法基于耦合的线和中心抽头的上，下阶梯式阻抗谐振器。这些谐振器产生尖锐的抑制，宽带宽和教鞭，以实现紧凑的滤波器。还研究了滤波器的详细理论以及数值分析。作为演示，已使用低成本PCB技术在33.5 GHz频率下设计和制造了拟议的带通滤波器配置。已经观察到所提出的滤波器导致更好的回波损耗和低的插入损耗。提出了实验结果，并与模拟结果进行了比较，发现结果令人满意。此外，所获得的结果证明了彼此之间的良好协议。