Finite Ground CB-CPW Bandpass Filter using Vertically Installed Coupled Open-ended Stubs

Authors

  • Pratik Mondal Department of Electronics and Communication Engineering Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatnam-530 048, India
  • Susanta Kumar Parui Department of Electronics & Tele-communication Engineering Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, India
  • Rajesh Bera Department of Electronics and Communication Engineering Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatnam-530 048, India

Keywords:

Bandpass filter, CB-CPW, open-ended, series-stub, vertically installed

Abstract

In this paper, a conductor backed coplanar waveguide (CB-CPW) 3rd order bandpass filter is designed using coupled open-ended stub resonator placed vertically to the signal line. Vertically loaded open ended stubs are designed at quarter wavelength so as to behave like a short circuit at the input terminal thus giving a band-accepted response with lesser metallic area or minimum size. Four such coupled open ended resonators are placed in series and also in closely manner to provide greater field confinement of the proposed bandpass filter. The bandpass filter is designed for a center frequency of 2.5 GHz with FBW of 97.89%, insertion loss of <0.5dB, rising and falling edge selectivity of 30.75 dB/GHz and 27.01dB/GHz respectively with a wide stopband of around 4GHz after the desired passband. Further to validate the design technique six such resonators are placed to obtain 5th order bandpass filter.

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Author Biographies

Pratik Mondal, Department of Electronics and Communication Engineering Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatnam-530 048, India

Pratik Mondal received his Bachelor of Engineering degree in Electronics and Communication Engineering from the University of Burdwan, India in 2010. He did his Master of Engineering degree in Electronics & Telecommunication Engineering with specialization in Microwave Communication Engineering from Indian Institute of Engineering Science and Technology, Shibpur, India. He has done his Ph.D. from the same Institute in 2018. Presently, he is associated with Gayatri Vidya Parishad College of Engineeering, Visakhapatnam, India, as an Assistant Professor in the Department of ECE.
His research interests include the Microstrip Planar Circuits, Coplanar Waveguide based Circuits, DGS, DMS, Metamaterials etc. He is an Associate Member of Institution of Engineers, India. He is also a student member of IEEE-MTT Society.

Susanta Kumar Parui, Department of Electronics & Tele-communication Engineering Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, India

Susanta Kumar Parui received the B.Sc. degree in Physics and B.Tech. degree in Radiophysics and Electronics from the University of Calcutta in the year 1987 and 1990, respectively. He did Master degree in Microwave Communication Engineering from Bengal Engineering College, India, in the year 1993. From 1993 to 2000, he worked as Instrument Engineer. Since 2000, he is associated with the Department of Electronics and Telecommunication Engineering of Indian Institute of Engineering Science and Technology, Shibpur, India and presently holds the post of Associate Professor. His current research interests include the planar circuits, filters, antenna and EBG. He is a Senior Member of IEEE and also presently holds the post of Vice- Chairman of IEEE-MTT Kolkata Chapter.

Rajesh Bera, Department of Electronics and Communication Engineering Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatnam-530 048, India

Rajesh Bera passed B.Tech. degree in Electronics and Communication Engineering, from Birbhum Institute of Engineering & Technology, West Bengal, India in 2010. He received the M.Tech. and Ph.D. degree from KIIT, Bhubaneswar, India in 2012. Presently, he is attached with Gayatri Vidya Parishad College of Engineeering, Visakhapatnam, India, as an Assistant Professor in the Department of ECE. His research interest includes Array Antenna design, Array parameter optimization and beam-pattern synthesis using Evolutionary Computing Techniques.

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Published

2020-09-01

How to Cite

[1]
Pratik Mondal, Susanta Kumar Parui, and Rajesh Bera, “Finite Ground CB-CPW Bandpass Filter using Vertically Installed Coupled Open-ended Stubs”, ACES Journal, vol. 35, no. 9, pp. 1053–1058, Sep. 2020.

Issue

2020: Vol 35 Iss 9

Section

General Submission