Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands

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  •   William Johnson

  •   Cavin Roger Nunes

  •   Savio Sebastian Dias

  •   Siddhi Suresh Parab

  •   Varsha Shantaram Hatkar

Abstract

In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.


Keywords: Microstrip, Stepped Impedance, Interdigital stubs, DGS, CSRR.

References

Katta Saran Krishna “Investigations On Some Planar Microwave Filters”, M.Tech. Thesis, Dept. of Electron., National Institute of Technology, Rourkela,India, 2014.

I. Bahl., Lumped elements for RF and microwave circuits, Artech House, Boston, 2003, vol. 7, pp. 229-252

Martel, Jesu´s, et al. “A new LC series element for compact bandpass filter design”. IEEE Microwave and Wireless Components Letters, vol. 14, no. 5, pp. 210-212, May 2004.

A. Lai, T. Itoh and C. Caloz, "Composite right/left-handed transmission line metamaterials," IEEE Microwave Magazine, vol. 5, no. 3, pp. 34-50, Sept. 2004.

Baena, J.D., Bonache, J., Martin, F., Sillero, R.M., Falcone, F., Lopetegi, T., Laso, M.A.G., Garcia-Garcia, J., Gil, I., Portillo, M.F. and Sorolla, M. “Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines”, IEEE Transactions on Microwave Theory and Techniques, vol. 53, Issue 4, pp. 1451-1461, April 2005.

Shaik, G., Schenkel, H., Detlefsen, J. and Fischer, G., “Composite right/left handed metamaterial structures for RF narrow bandpass filter design”, International Workshop on Metamaterials, pp. 291-296, Nanjing, 2008.

Qiaoli Zhang, Salman Naeem Khan and Sailing He, “Realization of left handedness through CSRRs and SRRs in microstrip line”, Microwave and Optical Technology Letters, vol. 51, Issue 3, pp. 757-760, March 2009.

A. Faraghi, M. Azarmanesh, and M. Ojaroudi, “Small microstrip low-pass filter by using novel defected ground structure for UWB applications,” Applied Computational Electromagnetics Society Journal, vol. 28, no. 4, pp. 341-347, 2013.

A. Ebrahimi, T. Baum and K. Ghorbani, "Differential Bandpass Filters Based on Dumbbell-Shaped Defected Ground Resonators," IEEE Microwave and Wireless Components Letters, vol. 28, no. 2, pp. 129-131, Feb. 2018.

M. Hayati, F. Shama, and M. Ekhteraei, “Miniaturized Microstrip Suppressing Cell with Wide Stopband”, Applied Computational Electromagnetics Society Journal, vol. 31, no. 10, pp. 1244-1249, October 2016.

Christopher Brent James, “Development of an Improved RF Band-Pass Filter using CSRR Metamaterial Structures on an LCP Substrate”, M.S. thesis, Dept. Electrical. Engg., Auburn University, Alabama, USA, 2015.

F. Wei, P. Qin, Y. J. Guo and X. Shi, "Design of multi-band bandpass filters based on stub loaded stepped-impedance resonator with defected microstrip structure,"IET Microwaves, Antennas & Propagation, vol. 10, no. 2, pp. 230-236, 29 1 2016.

Xida Deng, Kai Da Xu, Zhigang Wang, and Bo Yan, “Novel Microstrip Ultra-Wideband Bandpass Filter Using Radial-Stub-Loaded Structure”, Applied Computational Electromagnetics Society Journal, vol. 32, no. 12, pp.1148-1151, December 2017.

M. Li, Y. Wu, M. Qu and Y. Liu, "A Compact Broadband Filter Using Triple-Mode Stepped-Impedance Stub-Loaded Resonator," 2018 IEEE International Conference on Computational Electromagnetics (ICCEM), pp. 1-3, Chengdu, 2018,

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How to Cite
[1]
Johnson, W., Nunes, C., Dias, S., Parab, S. and Hatkar, V. 2019. Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands. European Journal of Engineering Research and Science. 4, 7 (Jul. 2019), 28-30. DOI:https://doi.org/10.24018/ejers.2019.4.7.1407.