• Vivek Singh Kushwah Department of Electronics, Amity School of Engineering & Technology, Gwalior, India



Microstrip Band Stop Filters, DGS, S-Band, S-Parameters


In this paper, a novel narrow band microstrip band-reject filter is designed using three circular shape defected ground structure (DGS). Three circular shape defected ground structure are linked by a path in the ground plane where etching process is applied. The path length of middle DGS cell is 8 mm and the path length of corner DGS cell is 11 mm whereas the path width of all three DGS cell is 0.6 mm and the radius of circular shape defected ground structure is 2.1 mm. The mid-stop band frequency of the designed filter is 1.61 GHz which is applicable for the satellite and radar communication for the purpose of S-Band. The stop bandwidth of proposed filter is 1 GHz to 2.2 GHz which is useful for narrowband communication. The proposed filter has minimum return loss of 0.11 dB and maximum insertion loss of 60 dB at mid stop-band frequency 1.61 GHz. IE3D 14.1 EM simulation tool is applied for finding out the desired outcome. The proposed microstrip band stop filter has a coverage area of (35.1 mm× 14.4 mm) 505.44 mm2 for the top layer and (16.6 mm× 19 mm) 315.4 mm2 for the ground layer which is more compact as compared to other existing band stop filter designs.


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Vivek Singh Kushwah, Abhineet Singh Tomar, “ANN Modeling of Microstrip Hairpin-Line Bandpass Filter,” International Journal of Communication Systems and Network Technologies, ISSN 2053-6283, Vol.3 No.1, pp 58-64,2014.

Othman, M.A. , Zaid, N.F.M. ,Abd Aziz, M.Z.A. , Sulaiman, H.A, “3GHz hairpin filter with Defected Ground Structure (DGS) for Microwave Imaging application,” IEEE International Conference on Computer, Communications, and Control Technology, pp. 411-414, 2014. DOI:

Vivek Singh Kushwah, Shivani Jain, Gaurav Saxena, “Design of Microstrip Patch Antenna using Defected Microstrip Structure,” 5th IEEE International Conference on Communication Systems and Network Technologies, pp. 37-40, 2015. DOI:

Vivek Singh Kushwah, Sarita Singh Bhadauria, Geetam Singh Tomar, “Design of Microstrip Low pass filter with Defected Ground Structure,” IEEE International Conference on Computational Intelligence and Communication Networks, pp. 12-15, 2015. DOI:

Taher, H., Farrell, R., “Design of dual band bandstop microstrip defected ground structure filter using adaptive neuro-fuzzy inference system,” IEEE 15th Mediterranean Microwave Symposium (MMS), pp.1-4, 2015. DOI:

Vivek Singh Kushwah, Sarita Singh Bhadauria, Geetam Singh Tomar, “Design of Microstrip Hairpin-Line Bandpass Filter with Square Shape Defected Ground Structure,” Asia-Pacific Journal of Advanced Research in Electrical and Electronics Engineering, Vol. 1, No. 1, pp. 21-38, ISSN: 2207-4503, 2017. DOI:

Deepika Pathak, Sudhir K. Sharma, Vivek Singh Kushwah, “Dual-Band Circularly-Polarized Dielectric Resonator Antenna for Wireless Applications,” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 28, Issue 2, pp. 1-6, ISSN: 1096-4290, 2018. DOI:




How to Cite

Kushwah, V. S. (2018). CIRCULAR DEFECTED GROUND MICROSTRIP BAND-REJECT FILTER DESIGN FOR RADAR COMMUNICATION. International Journal of Engineering Technologies and Management Research, 5(2), 346–354.