Study of Various EBG Based Micro strip Filter Structures

Anchal Chugh; Dr.Rajesh Khanna

doi:https://doi.org/10.14445/22315381/IJETT-V4I5P96

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Volume 4 | Issue 5 | Year 2013 | Article Id. IJETT-V4I5P96 | DOI : https://doi.org/10.14445/22315381/IJETT-V4I5P96

Study of Various EBG Based Micro strip Filter Structures

Anchal Chugh , Dr.Rajesh Khanna

Citation :

Anchal Chugh , Dr.Rajesh Khanna, "Study of Various EBG Based Micro strip Filter Structures," International Journal of Engineering Trends and Technology (IJETT), vol. 4, no. 5, pp. 1801-1803, 2013. Crossref, https://doi.org/10.14445/22315381/IJETT-V4I5P96

Abstract

In this paper, a planar EBG based microstrip filter structure is formed by etching circles in the ground plane and using a modulated microstrip line. These planar EBG microstrip structure provide s a wide stopband with high att enuation with high ripples in the passband due periodicity of EBG structure . Windows are used to eliminate the ripples in the passband caused by the periodicity. The coefficients of window distribution function are used for determining the radius of the circles etched in the ground plane. In this paper, a comparison of planar EBG microstrip filter structure using fixed window distribution is done. A comparison of effect of different window distribution on passband and stopband performance is presented. It is found that the Riesz distribution gives the largest bandwidth of 7.18GHz with maximum stopband attenuation of 50dB but with large ripple s in the passband while the Poisson distribution gives small ripples in both the lower and upper passband but with smallest bandwidth of 4.77GHz and stopband at tenuation of 27.68dB .

Keywords

Electromagnetic Bandgap Structure, CST Microwave Studio, Modulated Microstrip Line, Photonic Bandgap Structure, Tapering Function

References

[1] Ian Rumsey, Melinda Piket - May, P. Kelly, “ Photonic Bandgap Structures used as Filters in Microstrip Circuits ” , IEEE Microw. and Guided Wave Lett., vol. 8, no. 10 , pp. 336 - 339 , Oct. 1998 .
[2] M. A. G. Laso, T. Lopetegi, M. J. Erro, D. Benito, M. J. Garde, and M. Sarolla, “ Multi - frequency - tuned photonic bandgap microstrip structures ” , IEEE Microwave Guided Wave Lett., vol. 10 , pp. 357 - 360 , Jun. 2000 .
[3] G. Kurizki and A. Z. Genack, “ Suppression of molecular interactions in periodic dielectric structure ” , Phys. Rev. Lett., vol. 61, no. 19, pp. 2269 - 2271 , Nov. 1988 .
[4] R. Gonzalo, P. D. Maagt, and M.Sorolla, “ Enhanced patch - antenna performance by suppressing surface waves using p h otonic - bandgap substrates ” , IEEE Trans. Microw. Theory Te chn., vol.47, no. 11, pp. 2131 - 2138 , Nov. 1999 .
[5] V. Radisic, Y. Qian, R. Coccioli, and T. Itoh, “ Novel 2 - D photonic bandgap structure for microstrip lines ” , IEE E Microw. Guided Wave Lett., vol. 8, no. 2 , pp. 69 - 71 , Feb. 1998 .
[6] F. Falcone, T. Lopetegi and M. Sorolla, “ 1 - D and 2 - D photonic bandgap microstrip structure ” , Microwave Opt. Technol. Lett., vol. 22, no. 6 , pp. 411 - 412 , Sep. 1999 .
[7] C. Balanis, Antenna Theory Analysis and Design . New York: Wiley, 1997 , 2 nd edition.
[8] Shao Ying Huan and Yee Hui Lee, “ Compact U - Shaped Dual Planar EBG Microstrip Low - Pass Filter ” , IEEE Transaction on Microwave Theory and Techniques, vol. 37, no . 19, pp. 3799 - 3805 , Dec. 2005 .
[9] N. C. Karmakar and M. N. Mollah, “ Investigations into non - uniform photonic - bandgap microstrip line lowpass filters ” , IEEE Transaction Microwave Theory Techn., vol. 51, no. 2, pp. 564 - 572 , Feb. 200