Design of an Ideal Low Pass Microstrip Line Filter Using the Defected Ground Structure


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A design and simulation for low pass microstrip line filter with defected ground structure has been researched, the main purpose is with the simplest method to design an ideal low pass filter. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different geometric shape of DGS. The results show good performance of a low pass filter with DGS. Final, a low pass filter with DGS design and fabricated, The properties are shown as flow: center-frequency: 7.28G, S21:-47dB, cut-off frequency: 5.88GHz.



Edited by:

Prof. Dongyan Shi




P. C. Chen et al., "Design of an Ideal Low Pass Microstrip Line Filter Using the Defected Ground Structure", Applied Mechanics and Materials, Vol. 876, pp. 133-137, 2018

Online since:

February 2018




* - Corresponding Author

[1] D. Ahn, J. S. Park, C. S. Kim, J. Kim, Y. X. Qian and T. Itoh, A Design of the Low-Pass Filter Using the Novel Microstrip Defected Ground Structure, IEEE Trans. Microwave Theory Tech. 49(1) (2001) pp.86-93.


[2] S. Y. Lin, W. Z. Tian, S. Q. Zheng and X. W. Sun, A Semicircle DGS With High Q Factor for Microstrip Line and Low-Pass Filter, in Proceedings of Asia-Pacific Microwave Conference (2006), pp.1197-1199.


[3] J. S. Lim, C. S. Kim, I. S. Park, D. Ahn, and S. Nam, Design of10 dB 90 branch line coupler using microstrip line with defected ground structure, Electr. Lett. 36(21) (2000) pp.1784-1785.


[4] N. C. Karmakar, S. M. Roy, and I. Balbin, Quasi static modeling of slotted ground structure, IEEE Trans. Microwave Theory Tech. 54 (2006) p.2160–2168.


[5] K. W. Li, T. H. Lin, and C. J. Wang, A Design of Low-Pass Filter by Utilizing The Defected-Ground-Structure Resonator, Electromagnetics: Applications and Student Innovation Competition (iWEM), 2015 International Workshop on. IEEE, 2015. pp.96-101.


[6] G. M. Rafiquzzaman, A. T. Sadi, M. N. Molla, Design of the Novel Defected Ground StructureAssisted Microstrip Low Pass Filter, 2nd Int'l Conf. on Electrical Engineering and Information & Communication Technology (ICEEICT) 2015. pp.60-65.


[7] K. G. Avinash, I. Srinivasa Rao, Design of Microstrip Narrowband Bandpass Filter Using a Star Shaped Defected Ground Structure, Applied and Theoretical Computing and Communication Technology (iCATccT), 2015 International Conference on. IEEE, 2015. pp.86-91.