Performance of Microstrip Low-Pass Filter on Electromagnetic Band Gap Ground Plane

Abstract

In this work, the performance characteristics of a printed low-pass Alter (LPF) were analyzed on an electromagnetic band gap (EBG) ground plane. A ninth order Chebyshev LPF was designed at 2.44 GHz cut-off frequency using Stepped Impedance Resonator (SIR) method. The simulation results show that the EBG pattern of rectangular slots etched on the ground plane and located offset from the center line not only offers an improved stopband characteristic but also reduces the overall size of the Alter. Finally, a prototype model was developed based on the results obtained from the simulation and tested. The simulated and experimental results show good agreement.

Keywords:

• Chebyshev filter
• Electromagnetic band gap
• EMI/EMC
• Low-pass filter

Additional information

Notes on contributors

Anjini Kumar Tiwary

Anjini Kumar Tiwary was born in Jamshedpur, India in 1972. He received M.E. degree in Wireless Communications from Birla Institute of Technology, Ranchi, India in 2009. Currently, he is an Assistant Professor for Department of Electronics and Communication Engineering, Birla Institute of Technology, Ranchi, India and working towards Ph.D. degree. His research interests are Design and Development of Printed Filter Configurations for EMI/EMC applications. E-mail: [email protected]

Nisha Gupta

[email protected]Nisha Gupta received Bachelor’s and Master’s degrees in Electronics Telecommunication and Electrical & Electronics engineering both from Birla Institute of Technology, Mesra, Ranchi, India and also Ph.D. degree from the Indian Institute of Technology, Kharagpur, India. She was a Maintenance Engineer at Shreeram Bearings Ltd., Ranchi during 1982-83 and a Programmer at Ranchi University, Ranchi from 1983 to 1986. She was a Junior Scientific Officer in a DRDO sponsored project, at Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, from 1986-1989 and a Institute Research Scholar and Research Associate (CSIR) in the same department from 1990-1996. She was a post doctoral fellow at University of Manitoba, Canada from 1997-1998 before joining the Department of Electronics and Communication Engineering, Birla Institute of Technology in 1999 as a Reader. Currently, she is a Professor and Head in the same department. She has authored and coauthored more than 35 technical journal articles. Her research interests are Computational Electromagnetics, RF circuits and Antennas for Wireless Communication and AI techniques in Wireless and Mobile Communication. E-mail: [email protected]