Novel microwave network for the leaky-wave analysis of evanescent fields in stub-loaded structures

In this paper, a new transverse equivalent network for the modal analysis of stub-loaded leaky-wave antennas is developed. The derived network is useful for the study of the radiation of evanescent fields that occurs when they reach the top aperture of the parallel-plate stub. This transverse networ...

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Detalles Bibliográficos
Autores: Gómez Tornero, José Luis, Quesada Pereira, Fernando Daniel, Melcón Álvarez, Alejandro
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Universidad Politécnica de Cartagena(UPCT)
Repositorio:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/646
Acceso en línea:http://hdl.handle.net/10317/646
Access Level:acceso abierto
Palabra clave:Circuito de quivalencia transversal
Matriz cargada con antenas de fuga de ondas
Nonradiative dielectric (NRD) leaky-wave antennas
Stub-loaded leaky-wave antennas
Transverse equivalent circuit
Antena de fuga de ondas dieléctricas de no radiación
Teoría de la Señal y las Comunicaciones
Descripción
Sumario:In this paper, a new transverse equivalent network for the modal analysis of stub-loaded leaky-wave antennas is developed. The derived network is useful for the study of the radiation of evanescent fields that occurs when they reach the top aperture of the parallel-plate stub. This transverse network is based, for the first time, on a nonhybrid formulation of the constituent parallel- plates modes of order 1 (TE 1 andTM 1 ). The obtained network is an alternative to the one based on hybrid TE 1 andTM 1 modes, and leads to a simpler transverse resonance equation. The new equivalent network is validated by obtaining leaky-mode dispersion curves for a previously studied leaky-wave antenna in nonradiative dielectric guide technology.