Kildal, P.; Zaman, AU.; Rajo Iglesias, E.; Alfonso Alós, E.; Valero-Nogueira, A. (2011). Design and experimental verification of ridge gap waveguide in bed of nails for parallel-plate mode suppression. IET Microwaves Antennas and Propagation. 5(3):262-270. doi:10.1049/iet-map.2010.0089
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/56853
Title:
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Design and experimental verification of ridge gap waveguide in bed of nails for parallel-plate mode suppression
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Author:
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Kildal, Per-Simon
Zaman, Ashraf Uz
Rajo Iglesias, Eva
Alfonso Alós, Esperanza
Valero-Nogueira, Alejandro
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia
Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions
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Issued date:
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Abstract:
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This study describes the design and experimental verification of the ridge gap waveguide, appearing in the gap between parallel metal plates. One of the plates has a texture in the form of a wave-guiding metal ridge ...[+]
This study describes the design and experimental verification of the ridge gap waveguide, appearing in the gap between parallel metal plates. One of the plates has a texture in the form of a wave-guiding metal ridge surrounded by metal posts. The latter posts, referred to as a pin surface or bed of nails, are designed to give a stopband for the normal parallel-plate modes between 10 and 23 GHz. The hardware demonstrator includes two 90° bends and two capacitive coupled coaxial transitions enabling measurements with a vector network analyser (VNA). The measured results verify the large bandwidth and low losses of the quasi-transverse electromagnetic (TEM) mode propagating along the guiding ridge, and that 90° bends can be designed in the same way as for microstrip lines. The demonstrator is designed for use around 15 GHz. Still, the ridge gap waveguide is more advantageous for frequencies above 30 GHz, because it can be realised entirely from metal using milling or moulding, and there are no requirements for conducting joints between the two plates that otherwise is a problem when realising conventional hollow waveguides. © 2011 The Institution of Engineering and Technology.
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Subjects:
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Bed of nails
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Experimental verification
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Hardware demonstrator
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Hollow waveguides
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Low loss
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Measured results
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Metal posts
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Mode suppression
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Parallel metal plates
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Parallel plates
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Stopband
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Transverse electromagnetic mode
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Two plates
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Vector networks
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Wave-guiding
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Electric network analysis
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Metals
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Waveguides
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Electric network analyzers
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Copyrigths:
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Reserva de todos los derechos
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Source:
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IET Microwaves Antennas and Propagation. (issn:
1751-8725
)
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DOI:
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10.1049/iet-map.2010.0089
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Publisher:
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Institution of Engineering and Technology (IET)
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Publisher version:
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http://dx.doi.org/10.1049/iet-map.2010.0089
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Type:
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Artículo
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