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CAD of an X-Band TWT Interaction Circuit with Experimental Validation

Autor(es):
Lopes, Daniel Teixeira ; Motta, Claudio Costa ; IEEE
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: 2009 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE (IMOC 2009); v. N/A, p. 2-pg., 2009-01-01.
Resumo

In this paper we present results obtained while testing the 3D electromagnetic solver CST Microwave Studio as a CAD tool in the design of some parts of the beam-wave interaction circuit of an X-band traveling-wave tube. A pair of impedance transformers, present in the input and output microwave ports of the interaction circuit, was characterized by simulating and measuring its voltage stand wave ratio. The interaction circuit based on a ring-bar slow-wave structure was simulated using both the eigenmode and the frequency domain solvers of the CST Microwave Studio. The phase velocity and the interaction impedance, also named "cold parameters", were simulated by direct and indirect methods and the results compared to experimental ones. (AU)

Processo FAPESP: 08/05286-1 - Análise multitonal e caracterização experimental de válvulas de ondas progressivas (TWT) para emprego em amplificadores de microondas (TWA)
Beneficiário:Daniel Teixeira Lopes
Modalidade de apoio: Bolsas no Brasil - Doutorado