Search results for "guía de onda"

showing 3 items of 3 documents

An analytical model to evaluate the radiated power spectrum of a multipactor discharge in a parallel-plate region

2008

This paper is aimed at studying the electromagnetic radiation pattern of a multipactor discharge occurring in a parallel-plate waveguide. The proposed method is based on the Fourier expansion of the multipactor current in terms of time-harmonic currents radiating in the parallel-plate region. Classical radiation theory combined with the frequency domain Green's function of the problem allows the calculation of both the electric and the magnetic radiated fields. A novel analytical formula for the total radiated power of each multipactor harmonic has been derived. This formula is suitable for predicting multipactor with the third-harmonic technique. The proposed formulation has been successfu…

Multipactor effectparallel-plate waveguideThird harmonic detection techniqueTécnicaPotencia radiadaEffective radiated powerElectromagnetic radiationRadiation patternsymbols.namesakeEfecto multipactorOpticsMicrowave dischargesElectrical and Electronic EngineeringRadiated powermultipactor effectPhysicsTeoría de la Señal y las Comunicacionesbusiness.industrySpectral densityParallel plate waveguideElectronic Optical and Magnetic MaterialsComputational physicsMagnetic fieldGuía de ondas de placa paralelaTercer armónico de detenciónFourier analysisFrequency domainradiated powersymbolsMultipactor effectbusinessthird-harmonic detection techniqueDescarga de microondas
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Efficient Analysis of Arbitrarily Shaped Inductive Obstacles in Rectangular Waveguides Using a Surface Integral Equation Formulation

2007

In this paper we propose to use the Surface Integral Equation technique for the analysis of arbitrarily shaped Hplane obstacles in rectangular waveguides, which can contain both metallic and/or dielectric objects. The Green functions are formulated using both spectral and spatial images series, whose convergence behavior has been improved through several acceleration techniques. Proceeding in this way, the convergence of the series is not attached to the employment of any particular basis or test function, thus consequently increasing the flexibility of the implemented technique. In order to test the accuracy and numerical efficiency of the proposed method, results for practical microwave c…

Surface (mathematics)Componentes de guía de ondasWaveguide componentsAccelerationResonadores dieléctricosConvergence (routing)Electronic engineeringGreen's functionsMoment methodsElectrical and Electronic EngineeringIntegral equationsDiscontinuidades de ondas guíaMathematicsTeoría de la Señal y las ComunicacionesRadiationSeries (mathematics)Basis (linear algebra)Methods currentlyNumerical analysisMathematical analysisMétodos de momentosCondensed Matter PhysicsIntegral equationWaveguide discontinuitiesDielectric resonatorsEcuaciones integralesTest functions for optimizationFunciones GreenIntegral equation (IE)3325 Tecnología de las Telecomunicaciones
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Guías ópticas activas de polímero con puntos cuánticos coloidales

2013

En este trabajo se propone la integración de nanoparticulas semiconductoras coloidales en matrices de polímero para desarrollar nanocomposites que puedan ser utilizados en nuevos dispositivos fotónicos, y en particular como núcleos de guías de onda activas. De esta manera se dispersaron distintas familias de QDs (de CdSe, CdTe, CdS y PbS) y QRs (CdSe-CdS y PbS-CdS) en matrices de polímero (PMMA y SU-8), con el fin de demostrar que los nanocomposites elaborados a partir de estos materiales pueden funcionar como núcleos en guías de onda. En primer lugar se fabricaron y caracterizaron guías de onda planas, estudiando la dependencia de las propiedades de propagación de la luz con la concentraci…

ganancia ópticapuntos cuánticosguía de ondananocompositespolímerosfotoluminiscenciaoptoelectrónica
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