Simple analysis and design of a new leaky-wave directional coupler in hybrid dielectric-waveguide printed-circuit technology
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Research GroupGrupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsThis work was supported in part under Spanish National Project ESP2001-4546-PE and Spanish National Project TEC2004-04313-C02-02-TCM and under the Regional Séneca Project 2002 PB/4/FS/02.
PublisherIEEE Microwave Theory and Techniques Society
Bibliographic CitationGÓMEZ TORNERO, José Luis, MARTÍNEZ LÓPEZ, Sofía, ÁLVAREZ MELCÓN, Alejandro. Simple analysis and design of a new leaky-wave directional coupler in hybrid dielectric-waveguide printed-circuit technology. IEEE Transactions on Microwave Theory and Techniques, 54 (9): 3534-3542, Septiembre 2006. ISSN 0018-9480
Fuga de ondas
Método de momentos
Geometrical optics (GO)
Method of Moments (MOM)
This paper presents a new theory to analyze and design a novel leaky-wave coupler based on a hybrid dielectric-waveguide printed-circuit technology. The analysis theory is based on a combined method of moments (MoM) geometrical optics (GO) technique, which makes use of the leaky mode complex propagation constant. This MoM–GO approach allows to easily obtain the response of the coupler, and to illustratively understand the working mechanism of the proposed structure. A coupler is designed to work at 5.5 GHz. Leaky mode results are compared with three-dimensional finite-element method simulations, showing the validity and accuracy of the new theory developed. This novel directional coupler presents interesting advantages when compared to previous wave couplers.
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