Design of Wide Band-Rejection Filter using All-Stop Parallel Coupled Line Canonical Form along with Transmission Line

Authors

  • Salman Raju Talluri Department of Electronics and Communications, Jaypee University of Information Technology, Waknaghat, Solan-173234, Himachal Pradesh, India

Keywords:

Band-pass filters, band-reject filter, parallel coupled lines, scattering parameters, transmission line theory

Abstract

Microstrip parallel coupled lines in two-port canonical forms are used extensively in the design of bandpass and bandstop filters.
Two parallel coupled lines form a four-port network and it can be converted into a two-port network by terminating two of the four ports either with open or short circuits or by connecting the two ends. There are ten two-port canonical forms for a four-port parallel coupled line structure. Out of these ten forms, three forms are all-stop in nature. These all-stop parallel coupled line circuits are never used in the design of filters due to high insertion loss over the entire periodicity. Parallel coupled lines are periodic with half-wavelength. Hence, the theme of this paper is to propose the usefulness of the all-stop parallel coupled lines in the design filters by connecting this all-stop parallel coupled line structure with a transmission line in parallel. Analysis has been carried out on this basic structure of all-stop parallel coupled line along with the transmission line to characterize over a period. After the analysis, it has been proposed that this composite structure can be used in the design of bandstop filters.

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Author Biography

Salman Raju Talluri, Department of Electronics and Communications, Jaypee University of Information Technology, Waknaghat, Solan-173234, Himachal Pradesh, India

Salman Raju Talluri: Salman Raju Talluri has completed his M.Tech from IITK in 2009 and obtained his Ph.D. titled "Analysis of non-linear transmission lines for opposite phase and group velocities" in 2017 from Jaypee University of Information Technology, Solan, Himachal Pradesh, India. His areas of interest include non-linear transmission lines, microwave engineering, and antenna arrays. He is currently working as an assistant professor in Jaypee University of Information Technology, Solan. He was with the Astra microwave products limited, Hyderabad for one year from 2006 to 2007.

References

B.M. Chiffman and G. L. Matthaei, Exact design of band-stop microwave filters, IEEE Transactions on Microwave Theory and Techniques, vol. 12, pp. 6-15, 1964.

H. –J. Yoon and B.-W. Min, Two section wideband 90° hybrid coupler using parallel-coupled three-line, IEEE microwave and wireless components letters, vol. 27, pp. 548-550, 2017.

K.S. Vishvaksenan, K. Mithra, R. Kalaiarasan, and K.S. Raj, Mutual coupling reduction in microstrip patch antenna arrays using parallel coupled-line resonators, IEEE Antennas and Wireless Propagation Letters, vol 16, pp. 2146-2149, 2017.

D.M. Pozar, Microwave Engineering, John Wiley and Sons, 2009.

W.M. Fathelbab, Two novel classes of band-reject filters realizing broad upper pass bandwidth—synthesis and design, IEEE Transactions on Microwave Theory and Techniques, vol. 59, pp. 250-259, 2011.

S.-C. Lin, New microstrip cascaded-quadruplet bandpass filter based on connected couplings and short-ended parallel-coupled line, IEEE Microwave and Wireless Components Letters, vol. 24, pp. 2-4, 2014.

C.-W. Tang, C.-T. Tseng, and S.-C. Chang, A tunable bandpass filter with modified parallel-coupled line, IEEE Microwave and Wireless Components Letters, vol. 23, pp.190-192, 2013.

Kahng, G. Jang, and J. Anguera, Metamaterial dual-band bandpass filters using CRLH zero-order-resonators and improving its intermediate stopband, Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on. IEEE, 2010.

Matlab, Mathworks. Natick, MA, 2009.

Published

2018-07-31

How to Cite

Salman Raju Talluri. (2018). Design of Wide Band-Rejection Filter using All-Stop Parallel Coupled Line Canonical Form along with Transmission Line. International Journal of Advances in Microwave Technology, 3(3), 165-169. Retrieved from https://ijamt.com/index.php/ijamt/article/view/71