Jordi Selga

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This paper is focused on the automated and unattended optimization of a type of planar wideband bandpass filters by means of aggressive space mapping (ASM). The considered filters are microstrip filters implemented through a combination of shunt connected stepped impedance resonators (SIRs) and grounded stubs coupled through admittance inverters. The most(More)
INTRODUCTION Hip fractures are a leading cause of mortality and disability worldwide, and the number of hip fractures is expected to rise to over 6 million per year by 2050. The optimal approach for the surgical management of displaced femoral neck fractures remains unknown. Current evidence suggests the use of arthroplasty; however, there is lack of(More)
This paper is focused on the synthesis of artificial transmission lines based on complementary split ring resonators (CSRRs). The considered structures are microstrip lines with CSRRs etched in the ground plane and microstrip lines loaded with both CSRRs and series capacitive gaps. An aggressive space mapping (ASM) optimization algorithm, able to(More)
This article is focused on the practical implementation of a software tool for the synthesis of planar microwave circuits based on aggressive space mapping (ASM), which makes use of commercially available software packages as the core program (MATLAB V R) and as the electromagnetic (EM) fine model simulation space (Agilent Momentum V R). All technical(More)
This work is devoted to the analysis/study of slow-wave artificial transmission lines implemented by means of reactively-loaded electromagnetic bandgaps (EBGs). Various types of lines (microstrip, CPW) are considered, and both inductive and capacitive loading are studied. The design equations of these lines are used and applied to the design of various(More)
The automated and unattended design of balanced microstrip wideband bandpass filters by means of aggressive space mapping (ASM) optimization is reported in this paper. The proposed filters are based on multisection mirrored stepped impedance resonators (SIRs) coupled through quarter-wavelength transmission lines, acting as admittance inverters. Such(More)
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