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All Journal International Journal of Electrical and Computer Engineering Bulletin of Electrical Engineering and Informatics
Fouad Aytouna
Abdelmalek Essaadi University
Computer Science & IT Electrical & Electronics Engineering

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A Novel Cpw Low Cost Lowpass Filter Integrating Periodic Structures Fouad Aytouna; Jamal Zbitou; Mohamed Aghoutane; Naima Amar Touhami; Abdelwahed Tribak; Mohamed Latrach
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.623 KB) | DOI: 10.11591/ijece.v6i3.pp1106-1111

Abstract

In this work, we propose a novel design of a planar CPW lowpass “LPF” filter based on the use of periodic structures. The periodic cells are formed from a rectangular slot repeated periodically. The originality of this work is to develop a new LPF structure which is simple, low cost for fabrication and easy to associate with others microwave planar circuits. The proposed and validated LPF is a compact planar filter structure. The final circuit is simulated and optimized by using two electromagnetic solvers, ADS (Advanced Design System) and HFSS (High Frequency Structural Simulator). After many series of optimization we have validated the final circuit into simulation by using optimization methods integrated into the both solvers, taking into account a high density of meshing in order to cover the whole circuit. The fabricated LPF circuit shows good agreement between simulation and measurement results in term of matching input impedance and insertion loss with a cutoff frequency of 1.25GHz. The entire area of the proposed LPF is 35x31 mm2.
A new compact printed ring bandpass filter structure for ISM band applications Soufiane El Maimouni; Fouad Aytouna; Jamal Zbitou; Stephane Ginestar; Mohammed El Gibari
Bulletin of Electrical Engineering and Informatics Vol 15, No 4: August 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v15i4.11426

Abstract

We introduce a novel, compact bandpass filter (BPF) that employs Ring coupling through a microstrip design. This filter features a ring resonator that mainly relies on capacitive coupling to achieve its resonant characteristic. The results from experimental fabrication confirmed the expected performance of the filter, showing strong agreement between the simulated and measured S-parameters. The filter is built on a RO4003C substrate that is 1.52 mm thick, with a dielectric constant of 3.38 and a loss tangent of 0.0027. Designed for a center frequency of 5.72 GHz and a bandwidth of 930 MHz, it exhibits low insertion loss and effective signal rejection, as supported by advanced electromagnetic simulations. This flexible and efficient filter design represents a significant step forward, offering great potential for innovative communication systems and wireless power transmission, especially when integrated with 5.8 GHz straight-through antenna arrays for wireless energy harvesting.
Co-Authors Abdelwahed Tribak Jamal Zbitou Jamal Zbitou Mohamed Aghoutane Mohamed Latrach Mohammed El Gibari Naima Amar Touhami Soufiane El Maimouni Stéphane Ginestar