Browsing by Author "Soumali, Chaabane"

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    Analysis of asymmetrical composite rightLeft handed transmission line for broad band microwave devices
    (University of Oum El Bouaghi, 2021) Belattar, Mounir; Soumali, Chaabane
    Metamaterials are artificial structures that can be designed to exhibit specific electromagnetic properties not commonly observe in nature . In this paper we use a new iterative method to evaluate the different parameter of asymmetrical composite right left handed transmission lines (CRLH TL). In order to define the scattering parameters of a given number of N CRLH TL unit cells mounted in cascade, an iterative method is proposed. Starting from the first unit ABCD parameter one can extract the whole cascade ABCD parameters, further the scattering parameter S of the cascade structure are easily extracted. Finally the CRLH-TL structure is simulated using the commercial software HFSS. Good agreement between our method and simulation results is observed.
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    Design and Simulation of a Microstrip Band Pass Filter for C Band
    (University of Oum El Bouaghi, 2021) Soumali, Chaabane; Belattar, Mounir
    The objective of this work is to study and design a band pass filter based on microstrip technology for application in equipment of the fifth generation (5G) of cell phones in the C band. The presented process includes the estimation of filter parameters using analytical formulas, finding the corresponding low-pass prototype structure impedance and frequency scaling is performed to achieve a band pass filter. The pass-band filter is then implemented using end-coupled microstrip lines, the lengths of these lines and the gaps between them are obtained by using analytical formulas. The structure of this filter is simulated using Ansoft designer SV2.2 simulator. Good agreement between theoretical and simulated results is observed.