Theoretical and Experimental Evaluation of Superstrate Effect on Rectangular Patch Resonator Parameters

Abstract

Abstract-In this paper, modeling and experimentation of a Rectangular Patch Resonator (RPR) covered with a dielectric superstrate are investigated.The RPR criteria are established theoretically and experimentally, to be used in future prospects as an electromagnetic (EM) sensor for the characterization of superstrates. The theoretical model is based on the moment method (MoM) via Galerkin's approach, in which three types of basis and testing functions are used. These functions as well as the spectral dyadic Green function are efficiently implanted with compact structured Fortran 90 codes. The EM commercial HFSS and CST Microwave Studio softwares are used to simulate the proposed RPR prototypes. The accuracy of the obtained results is assessed using four prototypes of RPRs operating around 6 GHz, taking into account only the resonant frequency of the fundamental dominant mode. The theoretical model is compared to simulation and measurement results, and very good agreements are observed.

Resonant characteristics of rectangular Microstrip antenna printed on electric–magnetic uniaxial anisotropic substrates

“…So the results indicate that the bandwidth of the rectangular patch microstrip antenna can be increased several times with respect to the isotropic case depending on the adjustment of the anisotropy ratio and patch length. This behavior agrees with that of discovered experimentally for rectangular patches on the isotropic or electric anisotropic substrates [18]. According to the results, it seems to be possible to maintain control of the resonant frequency and obtain wide-band operation using uniaxial substrate having properly selected both permittivity and permeability along the optical and the non-optical axes combined with optimally chosen structural parameters.…”

“…To check the accuracy of the spectral domain method described in the previous section for electric anisotropic case, our results are compared with an experimental and theoretical values presented in the previous work [17, 18]. The convergent resonant frequencies for different substrate thicknesses are in an excellent agreement with the experiment results (Table 1).…”

Neurospectral modeling of rectangular patch with rectangular aperture in the ground plane

“…From Table 2 it is observed that the bandwidths of a rectangular microstrip antenna computed by the present approach are closer to the experimental [23] and theoretical [24, 25] values. In Table 3, the resonant frequencies obtained by the present approach are compared with the previous results [26, 27]. The comparison shows that the resonant frequencies computed by the present method are in very good agreement with the measured data for a rectangular patch printed on a single substrate.…”

Spectral Domain Analysis of Resonant Characteristics of High Tc Superconducting Rectangular Microstrip Patch Printed on Isotropic or Uniaxial Anisotropic Substrates

“…The first are concerns the rectangular microstrip patch printed on isotropic substrate, in Table 1 the calculated results of resonant frequencies are compared with recently experimental and theoretical published data [18,19].Also computed results of the resonant frequencies for conducting patch printed on anisotropic substrate are compared with experimental and theoretical values presented in previous work [18,20]. Tables 2 and 3 summarized the measured and computed resonant frequencies for different geometrical antennas.…”