Practical Tapered Waveguide Design Using Bernstein Profile Approximations

[EN] 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 lev...

Descripción completa

Detalles Bibliográficos
Autores: Cogollos, Santiago|||0000-0002-4189-2952, David Rubio Garrido|||0000-0002-9471-2011, Martínez Pérez, Jorge Daniel|||0000-0002-7119-3714, Boria Esbert, Vicente Enrique|||0000-0001-7150-9785
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/229308
Acceso en línea:https://riunet.upv.es/handle/10251/229308
Access Level:acceso abierto
Palabra clave:Impedance matching
Microwave circuits
Nonuniform transmission lines
Waveguides
Descripción
Sumario:[EN] 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.