Ka-band diplexer design based on half-mode groove gap waveguide
[EN] This paper shows the practical design of a Ka-band tuning-less diplexer in half-mode groove gap waveguide (HM-GGW) technology for multi-beam satellite applications. This new technology can be easily manufactured, since it lets the design of two separate metallic pieces: one for the cover with p...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| 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:10251/221221 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/221221 |
| Access Level: | acceso abierto |
| Palabra clave: | Gap waveguide technology Groove gap waveguides Satellite communications Waveguide diplexer |
| Sumario: | [EN] This paper shows the practical design of a Ka-band tuning-less diplexer in half-mode groove gap waveguide (HM-GGW) technology for multi-beam satellite applications. This new technology can be easily manufactured, since it lets the design of two separate metallic pieces: one for the cover with periodic pins, and another one for the half-groove gap waveguide structure. The proposed diplexer is composed of two bandpass HM-GGW filters, an H-plane T-junction and the corresponding transitions to the input/output WR28 rectangular ports. To illustrate how this technology can be applied, a prototype has been successfully fabricated, showing in-band measured return and insertion losses of 21 dB and 0.87 dB in the lower band, 16 dB and 0.86 dB in the upper band, and a good isolation level (better than 32.5 dB) in the whole operational frequency range. |
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