Miniature microstrip filter using high-permittivity ceramic substrates (er = 90)

Michel Le Coq (1) , Eric Rius (2) , Cédric Quendo (1) , Benjamin Potelon (1) , Jean-François Favennec (1) , Laetitia Estagerie (3) , Pascal Moroni (4) , Yann Clavet (5) , Alexandre Manchec (5)

1 Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (UMR 3192)
2 Lab-STICC_UBO_MOM_DIM
3 CNES - Centre National d'Études Spatiales [Toulouse]
4 TAS - Thales Alenia Space [Toulouse]
5 Elliptika

This paper presents a C-band planar filter miniaturized through use of high-permittivity substrates to meet the specifications. The drawbacks associated to such substrates are briefly recalled. To overcome them, the filter under study was based on the DBR topology and realized on a high-K commercial substrate. This ceramic has a relative permittivity of 90 and a low dielectric tangent (tanδ <; 10-3). Finally, the results of simulations and measurements are presented and discussed, particularly the footprint reduction.

Domaines: Electronique; Electromagnétisme

Michel Le Coq, Eric Rius, Cédric Quendo, Benjamin Potelon, Jean-François Favennec, et al.. Miniature microstrip filter using high-permittivity ceramic substrates (er = 90). Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International, Jun 2011, Baltimore, United States. pp.TH2A-1. ⟨hal-00671161⟩