Compact microstrip lowpass filter with wide stopband and sharp transition band using radial stub resonator

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Aeu-International Journal of Electronics and Communications Pub Date : 2024-08-02 DOI:10.1016/j.aeue.2024.155468

Sajjad Mohanad Mustafa , Mohsen Hayati , Mehrnaz Khodadoost , Salma Ali Sadeq , Farzin Shama , Pouya Karami

引用次数: 0

Abstract

This study introduces a compact microstrip lowpass filter that offers a wide stopband and a low transition band. The couple radial stubs are designed for having sharp roll-off. The filter has a −3 dB cut off frequency of 1.6 GHz, with a transition band ranging from 1.6 to 1.7 GHz with attenuation levels of −3 dB and −20 dB, respectively. To ensure a wide stopband, the filter utilizes bended transmission lines with stepped impedance suppressing cells, resulting in a stopband attenuation of 20 dB from 1.7 to 28 GHz. The insertion loss in the passband is less than 0.1 dB, and the overall size of the filter is 0.127 × 0.087 λg².

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利用径向存根谐振器实现具有宽阻带和尖锐过渡带的紧凑型微带低通滤波器

本研究介绍了一种紧凑型微带低通滤波器，它具有较宽的阻带和较低的过渡带。耦合径向存根的设计具有尖锐的滚降。该滤波器的 -3 dB 截止频率为 1.6 GHz，过渡带范围为 1.6 至 1.7 GHz，衰减水平分别为 -3 dB 和 -20 dB。为确保较宽的阻带，滤波器采用了带有阶梯阻抗抑制单元的弯曲传输线，从而使 1.7 至 28 GHz 的阻带衰减为 20 dB。通带插入损耗小于 0.1 dB，滤波器的整体尺寸为 0.127 × 0.087 λg2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.