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A Compact X-Band Coplanar Waveguide Hybrid Lowpass Filter

Hamza O. Issa, Walaa S. Diab, and Mohammed W. Wehbi
Department of Electrical and Computer Engineering, University of Beirut Arab University, Debbeyeh, Lebanon

Abstract—The paper presents the design of a compact coplanar waveguide lowpass filter in the X band. The lowpass filter has a 3-dB cutoff frequency of 10 GHz. The compact size is achieved due to the use of localized surface mount capacitive loading. For the first time, the employment of localized loading capacitors for miniaturiza-tion proves to be efficient at high frequencies. The designed hybrid filter proves to have smaller size and better performance than commercially available filter with which a comparison is made. 

Index Terms—Coplanar waveguide technology, compact lowpass filter, miniaturization, semi-lumped, X-Band

Cite: Hamza O. Issa, Walaa S. Diab, and Mohammed W. Wehbi, "A Compact X-Band Coplanar Waveguide Hybrid Lowpass Filter," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 9, No. 2, pp. 105-110, March 2020. Doi: 10.18178/ijeetc.9.2.105-110

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.