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This paper presents the analysis of microstrip monopoles for applications in ultra wideband systems (UWB). Antenna structures using circular and semi annular ring patches are considered. The antennas are printed on a FR4 dielectric substrate and present truncated ground planes with a small cut beneath the microstrip line feeder to improve the antenna impedance matching. Results for return loss, resonant...
A Wave Concept Iterative Procedure (WCIP) based on transverse waves formulation is presented. This method is applied to analyze annular microstrip patch antennas on anisotropic substrates. The use of FFT algorithm to define a fast modal Fourier transform results in accurate solutions with significant savings in computation time and memory requirements. WCIP results are compared with the HFSS simulation...
This work presents an investigation on the parameters of microstrip patch antennas with metamaterial inspired substrates and superstrates. The metamaterial inspired behavior is obtained using split-ring resonators printed on dielectric substrates and complementary split-ring resonators perforated in thin metallic surfaces (such as ground planes). The effect of these metamaterial structures on the...
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