Practical Tapered Waveguide Design Using Bernstein Profile Approximations

This article describes a practical method to design waveguide tapers with smooth profile. A tapered waveguide, in general, is used to match different waveguide sections with the lowest possible reflection level. This method, based on Bernstein approximations, is used to achieve a reflection levels l...

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Detalles Bibliográficos
Autores: Cogollos, Santiago, Rubio Garrido, David, Martínez, Jorge D., Boria, Vicente E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::1fa7614f65c6250c42e99958e3e7efca
Acceso en línea:http://hdl.handle.net/10261/427412
https://api.elsevier.com/content/abstract/scopus_id/105010901676
Access Level:acceso abierto
Palabra clave:Impedance matching
Microwave circuits
Nonuniform transmission lines
Waveguides
Descripción
Sumario:This article describes a practical method to design waveguide tapers with smooth profile. A tapered waveguide, in general, is used to match different waveguide sections with the lowest possible reflection level. This method, based on Bernstein approximations, is used to achieve a reflection levels lower than the typical 20 dB in waveguide designs. The taper is designed with a prescribed length for bandwidths beyond the common frequency band of the end waveguide sections. An example of waveguide taper is compared with previous works in terms of reflection and curvature parameters. Finally, a prototype has been simulated and measured with excellent results.