Synthesis of split rings based artificial transmission lines through a new two-step, fast converging, and robust aggressive space mapping (ASM) algorithm
Selga Ruiz, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Rodríguez, Ana (Universitat Politècnica de València. Departament de Comunicacions)
Boria, Vicente E. (Universitat Politècnica de València. Departament de Comunicacions)
Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Data:	2013
Resum:	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 automatically generate the layout of these artificial lines, has been developed. The tool has been optimized in order to achieve fast convergence and to provide accurate results. The main relevant aspects of the proposed algorithm (based on a novel two-step ASM optimization approach) are: 1) the capability to provide the implementable circuit elements of the equivalent circuit model of the considered artificial lines and 2) the ability to converge in a few (unprecedented) iteration steps, due to a new procedure to generate the initial layouts (which are very close to the final ones). First, the software is tested through the synthesis of several CSRR-based microstrip lines, and then some practical application examples of such artificial lines are reported to illustrate the potential of the proposed synthesis tool.
Ajuts:	Ministerio de Ciencia e Innovación TEC2010-17512 Ministerio de Ciencia e Innovación TEC2010-21520-C04-01 Ministerio de Ciencia e Innovación CSD2008-00066 Ministerio de Ciencia e Innovación AP2008-04707 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-421
Nota:	Altres ajuts: MITyC/TSI-020100-2010-169
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Matèria:	Artificial transmission lines ; Complementary split ring resonator (CSRR) ; Metamaterial transmission lines ; Microstrip ; Space mapping
Publicat a:	IEEE transactions on microwave theory and techniques, Vol. 61, Num. 6 (Jun 2013) , p. 2295-2308, ISSN 0018-9480

DOI: 10.1109/TMTT.2013.2259254

Pre-print 14 p, 2.1 MB

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