Speakers
Mr
Nicolas Delhote
(Xlim research institute, University of Limoges (FR))Mr
Yoann Marchives
(Xlim research institute, University of Limoges (FR))
Description
The objective of this NPI activity is to explore dielectric filters using original 3D shapes. Additive manufacturing is one of the technologies used here for this purpose with a particular objective of creating filters with a limited number of parts.
Ceramic filter are more specifically studied here in order to obtain compact and very wide bandpass filters. The creation of very high coupling values between dielectric resonators is particularly difficult and a specific configuration based on the stacking of TM010 mode resonators has been proposed. That approach allows the creation of very wide bandpass filter (> 10%) while keeping a rather good spurious free range and limited insertion loss. The proposed shape is very compact and can be built within just one part. Specific coaxial probes have been designed in order to provide the very high input and output coupling needed by such structure.
2nd and 4th order bandpass filters have been designed around 4 GHz and manufactured out of Zirconia (ZrO2) by additive manufacturing and high accuracy machining.
Primary authors
Mr
Nicolas Delhote
(Xlim research institute, University of Limoges (FR))
Mr
Petronilo Martin-Iglesias
(ESA / TEC-ETE)
Mr
Yoann Marchives
(Xlim research institute, University of Limoges (FR))
