Open Access Open Access  Restricted Access Subscription or Fee Access

Design and Analysis of Microstrip Band Stop Filter with Modified Circle and Dumbbell Shape Ground Structure

Lalit Barpete, Bimal Garg

Abstract


In this proposed paper the performance of Band stop filter with modified ground structure is analyzed in this specific work; the modified ground structure includes a circle and dumbbell etched shapes in ground plane. Parameters of  the  proposed configuration were calculated at the cut off  frequencies of f1=1 GHz, f2=1.62GHz and  also  proposed  designs  having  substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of  4.4. Results are calculated using Computer Simulation Technology software (CST) also the response of the fabricated filter is tested on a spectrum analyzer (0 to 3GHz). The undesired sidebands and fluctuations of response are reduced by using modified ground structure.

 


Keywords


Band stop filter (BSF), Modified Ground or defected ground structure (DGS), Computer Simulation Technology Software (CST)

Full Text:

PDF

References


Gary Breed G. An Introduction to Defected Ground Structures in Microstrip Circuits, High Frequency Electronics, Copyright © 2008 Summit Technical Media, LLC November 2008.

Ahmed Boutejdar, Mohamed Al Sharkawy and Abbas Omar. A Simple Transformation of WLAN Band Pass to Low Pass Using Couple U-Defected Ground Structure (DGS) and Multilayer-Technique, Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2013; 12(1): 111–130p.

Xiao JK and Zhu YF. New U-Shaped DGS Bandstop Filters, progress in Electromagnetics Research C, 2012; 25: 179–191p.

Dong-ming Yuan, Shu-wen Zhao, Hong-xin Zhang, Peng-fei He. Design and analysis of a structure-based micro strip band pass filter, The Journal of China Universities of Posts and Telecommunications, 2014; 21(4): 64–67p.

Verma AK, Ashwani kumar. Design Of Low Pass Filters Using Some Defected Ground Structure, Int. J. Electron. Commum. (AEU), 2012; 65: 864–872p.

Jian-Kang Xiao, Yu-Feng Zhu Multi-band bandstop filter using inner T-shaped defected microstrip structure (DMS), International Journal of Electronics and Communications, 2014; 68(2): 90–96.

Deena A Salem, Ashraf S Mohra, A Sebak. A compact ultra wideband band pass filter using arrow coupled lines with defected ground structure, Journal of Electrical Systems and Information Technology, 2014; 1(1): 36–44p.

David M Pozar. Microwave Engineering, 3rd Ed., John Wiley & Sons Inc., New York, 2005.

Jia-Sheng Hong, Lancaste MJ. Microstrip filters for RF/Microwave Application, A Wiley-Interscience Publication book.

CST(computer Simulation Technology) microwave software studio 2010.




DOI: https://doi.org/10.37591/jomet.v2i2.5347

Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 Journal of Microwave Engineering and Technologies