A WIDE STOP BAND 6-POLE STEPPED IMPEDANCELOW PASS FILTER USING DOUBLE EQUILATERALU- SHAPED DEFECTED GROUND STRUCTURE

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

Kalpana Ramesh Chaturvedi¹ 

[1] Dept. of Electronics & Telecommunication Engg., Gyan Ganga college of Technology

关键词: low pass filter;    Dielectric constant;    Microstrip filter;    Defected ground structure (DGS);   

来源: Research & Reviews

【 摘 要 】

Filters play an important role in microwave applications. Micro strip filters play various role in wireless communication or mobile communication systems. There is an increasing demand for newer microwave and millimeter wave system to meet the emerging telecommunication challenge with respect to size, cost and performance. This paper presents a compact microstrip stepped impedance lowpass filter with ultra-wide stop band. A compact double equilateral Ushaped defected ground structure (DGS) unit is proposed. In contrast to a single finite attenuation pole characteristic offered by the conventional dumbbell DGS the proposed DGS unit provide dual finite attenuation poles that can be independently controlled by the DGS lengths. A 1.5-GHz microstrip low pass filter using five cascaded double U-shaped DGS unit is designed and compared with conventional DGS low pass filter.

【 授权许可】

Unknown