Title :
Ceramic Layer-By-Layer Stereolithography for the Manufacturing of 3-D Millimeter-Wave Filters
Author :
Delhote, Nicolas ; Baillargeat, Dominique ; Verdeyme, Serge ; Delage, Cyrille ; Chaput, Christophe
Author_Institution :
Unite Mixte de Recherche, CNRS, Limoges
fDate :
3/1/2007 12:00:00 AM
Abstract :
Three-dimensional (3-D) ceramic stereolithography has been developed and used to manufacture RF devices using periodic structures. To our knowledge, it is the first time that zirconia and high-performance Ba3ZnTa2O9 ceramics are used with that process to manufacture high unloaded quality factor resonant structures and bandpass filters working in the Ka-band. A theoretical study on the performances of periodic arrangements of high-permittivity structures has been carried out and has led to the manufacture of a high unloaded quality factor cavity and narrow three-pole filter (1% bandwidth) measured at a working frequency of 33 GHz
Keywords :
Q-factor; band-pass filters; barium compounds; ceramics; millimetre wave filters; periodic structures; permittivity; stereolithography; tantalum compounds; zinc compounds; 33 GHz; 3D ceramic technology; 3D millimeter-wave filters; Ba3ZnTa2O9; Ba3ZnTa2O9 ceramics; Bragg reflector; bandpass filter; bandpass filters; ceramic layer-by-layer stereolithography; high unloaded quality factor; high-permittivity structures; periodic structures; resonant structures; three-pole filter; zirconia; Band pass filters; Bandwidth; Ceramics; Manufacturing processes; Performance evaluation; Periodic structures; Q factor; Radio frequency; Resonance; Stereolithography; 3-D ceramic technology; ${hbox{Ba}}_{3} {hbox{ZnTa}} _{2} {hbox{O}} _{9}$ (BZT); Bragg reflector; ceramic stereolithography process; high unloaded quality factor; narrow bandpass filter; periodic structure; zirconia;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2007.891690
