Innovative Shielded High $Q$ Dielectric Resonator Made of Alumina by Layer-by-Layer Stereolithography

  title={Innovative Shielded High \$Q\$ Dielectric Resonator Made of Alumina by Layer-by-Layer Stereolithography},
  author={Nicolas Delhote and D. Baillargeat and S. Verdeyme and Christophe Delage and Christophe Chaput},
  journal={IEEE Microwave and Wireless Components Letters},
This letter presents a compact design of a shielded high unloaded Q dielectric resonator. The main interest of this work is the use of the three-dimensional stereolithography process to manufacture innovative ceramic radio frequency devices. Thus, a resonator, its support, and the surrounding cavity is manufactured in one part out of alumina by that process. The measured structure exhibits an unloaded Q of 3900 at 11.88GHz and is free of spurious modes over a 3-GHz range 
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