seghiri, fatima university abou bakr belkaid - departement of physics, Tlemcen, Algeria , aliane, kamila preparatory school of oran - department of electrical engineering and electronics, Oran, Algeria , benabdallah, nadia preparatory school of tlemcen - departement of physics, Tlemcen, Algeria , lachachi, djamal university abou bakr belkaid - department of electrical engineering and electronics, Tlemcen, Algeria , benahmed, nasreddine university abou bakr belkaid - department of electrical engineering and electronics, Tlemcen, Algeria

MoM analysis and design of a quasi-TEM split ring resonator for UHF-MRI

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This article presents the electromagnetic characterization of the effective dielectric constant (ε_eff), the characteristic impedance (Zc), the inductance (L) and the capacitance (C) of the quasi- transverse-electromagnetic split ring resonator (quasi-TEM SRR). This characterization is done using the method of moments (MoM), while the resonator is loaded by a dielectric body and is used for UHF-MRI probes. We simulate the frequency response of (S_11) at the RF port of the designed quasi-TEM UHF-MRI probe using transmission line method (TLM). As an application, we present the design results of an UHF-MRI probe loaded with a human muscle model of average relative dielectric constant of 65.57. The probe with high-Q operates at 340 MHz frequency and has (-115.7 dB) minimum reflections.

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Biological load , EM , parameters , High , Q , Frequency response , MoM and TLM calculations , Human muscle model , Quasi , TEM split ring resonator , S , parameters , Quasi , TEM UHF , MRI probe

Mediterranean Telecommunications Journal

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