Design of Compact Low-pass Filter with With Wide Rejection Band Using Cascaded Arrowhead-DGS and Multilayer-Technique

Author

Boutejdar, Ahmed ; Omar, Abbas ; Batmanov, Anatoliy ; Burte, Edmund

Author_Institution

Dept. of Microwave & Commun. Eng., Univ. of Magdeburg, Magdeburg

fYear

2009

fDate

16-18 March 2009

Firstpage

1

Lastpage

4

Abstract

In this paper a compact low-pass filter (LPF) composed on arrowhead-DGS slots has been proposed and implemented. Triangle-shaped slot is investigated and adapted to tighten the coupling of arrowheads in order to minimize the size of a structure and improve a LPF performance. The measured insertion loss is less than 0.8 dB throughout the pass band from DC up to 3 GHz. Only three cells of the proposed structure are required for a wide stop-band with more than - 20 dB stop-band rejection from 4.0 GHz up to 14.0 GHz. The equivalent circuit model has been studied to investigate the filter structure and compared with a full-wave EM simulation. Measured results show that the new design provides good performance by suppressing ripples and enlarges the stop-band.

Keywords

low-pass filters; microstrip filters; transmission lines; cascaded arrowhead-DGS; compact low-pass filter; insertion loss; multilayer technique; Band pass filters; Capacitance; Circuit simulation; Cutoff frequency; Equivalent circuits; Inductance; Low pass filters; Microstrip; Microwave filters; Resonant frequency; Arrowhead DGS; Cascaded Method; DGS; Low-Pass Filter (LPF); Microstrip Filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009 German

Conference_Location

Munich

Print_ISBN

978-3-9812668-0-1

Electronic_ISBN

978-3-8007-3150-3

Type

conf

DOI

10.1109/GEMIC.2009.4815903

Filename

4815903