Design and Fabrication of a Lowpass Filter Using a New Butterfly-Shaped Defected Ground Structure

Majlesi Journal of Telecommunication Devices

مقاله 6، دوره 10، شماره 3، آذر 2021، صفحه 129-136   

نوع مقاله: Articles

شناسه دیجیتال (DOI): 10.52547/mjtd.10.3.129

نویسندگان

Majeed Zaidan¹؛ Vahid Rezaeian²؛ Saber Izadpanah Toos^{* 3}

¹Middle Technical University, Electrical Technical Department, Baghdad, Ir

²Ferdowsi University, Department of Electrical Engineering, Mashhad, Ira

³Sadjad University of Technology, Department of Electrical Engineering, Mashhad, Iran

چکیده

In this paper, a new Defected Ground Structure (DGS) is introduced and analyzed. The effect of the structure’s dimensions on the location of the attenuation pole and the cutoff frequency to study the frequency characteristics is investigated. In the following, a lowpass filter with 3 dB cutoff frequency at 3 GHz is designed and optimized using the proposed defected ground structure, and its frequency characteristic is reported. The designed lowpass filter is fabricated to verify the simulation process. Also, simulation results, the equivalent circuit, and the measured results with the Network Analyzer are compared.

کلیدواژه‌ها

Defected Ground Structure؛ DGS؛ low-pass filter؛ Microstrip Filter

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