3D Compact High-Q Filter Made of High-Permittivity Ceramic

Yaakoub Dia (1) , Laure Huitema (1) , Stéphane Bila (1) , Marc Thevenot (1) , Nicolas Delhote (1) , Christophe Delaveaud (2)

1 XLIM-SRF - Systèmes RF
2 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information

This paper presents the design of a compact and high-Q microwave filter integrated by using a low-loss highpermittivity ceramic material. Further miniaturization is achieved by insertion of a capacitive post placed in the middle of each resonator. An unloaded quality factor of 385 is obtained for a miniaturized filter having typical dimensions of λ0/7.5 x λ0/7.5 x λ0/30 at 2.5 GHz, λ0 being the free space operating wavelength.

Mots clés: ceramics; microwave filter; filter synthesis

Domaines: Electromagnétisme; Electronique

Yaakoub Dia, Laure Huitema, Stéphane Bila, Marc Thevenot, Nicolas Delhote, et al.. 3D Compact High-Q Filter Made of High-Permittivity Ceramic. European Microwave Conference, Sep 2019, Paris, France. ⟨10.23919/EuMC.2019.8910921⟩. ⟨hal-02377005⟩