Microstrip Hairpin Bandpass Filter for Radar S-Band with Dumbbell-DGS

2019 IEEE 5th International Conference on Wireless and Telematics (ICWT) Pub Date : 2019-07-01 DOI:10.1109/ICWT47785.2019.8978257

N. Ismail, Siti Maria Ulfah, Inel Lindra, A. S. Awalluddin, I. Nuraida, M. Ramdhani

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引用次数: 4

Abstract

One of the possible errors in radar communication is the presence of unwanted frequencies that are still passed by the radar system, causing performance to decrease. This paper proposes a bandpass filter (BPF) design for S-Band radars that work in the range of 3 GHz. A Bandpass filter is designed using the microstrip hairpin technique plus the dumbbell-Defected Ground Structure (DGS) method. This study aims to prove that the selection of DGS forms and effectiveness in optimization can provide better results. The band-pass filter is realized using the RO4350-B material with a relative dielectric constant of 3.48 and a thickness of 1.524 mm. The results obtained from the realization of band-pass filters show S11 of −31.822 dB, S21 of −0.829 dB and VSWR of 1.502. Filters work on ranges 2.850 – 3.02 GHz with a bandwidth of 170 MHz. From the parameters of the results obtained, the filter designed is following the specifications specified. Addition of dumbbell-DGS also gives better results than the form of a square groove-DGS.

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带哑铃- dgs的雷达s波段微带发夹带通滤波器

雷达通信中可能存在的错误之一是雷达系统仍然通过不需要的频率，导致性能下降。本文提出了一种工作在3ghz波段的s波段雷达带通滤波器设计方案。采用微带发夹技术和哑铃缺陷接地结构(DGS)方法设计了一个带通滤波器。本研究旨在证明DGS形式的选择和优化的有效性可以提供更好的结果。该带通滤波器采用相对介电常数为3.48，厚度为1.524 mm的RO4350-B材料实现。实现带通滤波器的结果表明，S11为−31.822 dB, S21为−0.829 dB，驻波比为1.502。滤波器工作范围为2.850 - 3.02 GHz，带宽为170 MHz。从得到的参数结果来看，所设计的滤波器符合规定的规格。添加哑铃- dgs的效果也优于方形凹槽- dgs的形式。

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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2019 IEEE 5th International Conference on Wireless and Telematics (ICWT)

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