Nadia Benabdallah

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Design, analysis and optimization of a parallel-coupled microstrip bandpass filter for FM Wireless applications is presented in this paper. The filter is designed and optimized at a center frequency of 6 GHz. Half wavelength long resonators and admittance inverters are used to design the filter. A brief description of coupled microstrip lines and immittance(More)
Using the finite element method (FEM) in two dimensions and the CST MICROWAVE STUDIO (CST MWS) Transient Solver, the electromagnetic (EM) analysis and the design of a novel compact ultra wideband (UWB) bandpass filter using rectangular coaxial cables with square inner conductors, convenient for high power applications, are presented. The design of the UWB(More)
In this paper we present electromagnetic (EM) analysis of the unloaded slotted-tube resonator (STR) with a circular cross section, using the finite element method (FEM) and method of moments (MoM) in two dimensions. This analysis allows the determination of the primary parameters: [L] and [C] matrices, optimization of the field homogeneity, and simulates(More)
In this work, we are interesting in the analysis and the design of an ultra wideband (UWB) band pass filter with improved upper stop band performances, using microstrip lines. The design of the UWB band pass filter is based on the use of stepped-impedance low pass filter and high pass filter; whereas the simulation of its frequency response ([S]) is done(More)
Using the finite element method (FEM) and method of moments (MoM) in two dimensions, the electromagnetic (EM) analysis and design of a quasi-TEM slotted tube resonator (STR) are presented. The modeling of this resonator consists in analyzing the evenand odd-mode characteristic impedances (Z0e, Z0o), effective dielectric constants (εeffe, εeffo), the primary(More)
Using the method of moments (MoM) the analysis and the design of a compact ultra wideband (UWB) bandpass filter using shielded micromachined microstrip lines are presented. The design of the UWB filter is based on the use of impedance steps and coupled-line sections. The center frequency around 6.85 GHz was selected, the bandwidth is between 4-10 GHz, the(More)
In order to overcome the main drawbacks of coaxial, waveguide, and stripline couplers, the analysis and the design of a compact coaxial-to-microstrip directional coupler convenient for power and antenna control application, are presented using the method of moments (MoM) in two dimensions. This technique is adapted to study the complex configuration of the(More)
In this work, we used the finite element method (FEM) and the multiconductor transmission lines (MTL) method for designing an UHF magnetic resonance imaging (MRI) probe. This radio frequency (RF) volume coil quasi-transverse electromagnetic (quasi-TEM) type, based on the use of 16 microstrip transmission line elements has been developed for in vivo hydrogen(More)
The electromagnetic (EM) analysis and design of a nelement unloaded coupled-microstrip-line TEM resonator are presented in this paper by using the finite element method (FEM) and method of moments (MoM) in two dimensions. The analysis allows the determination of the primary inductive and capacitive matrices ([L], [C0]) and simulates the frequency response(More)
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