Title :
Ultra-broad bandwidth and low-loss GCPW-MS transitions on low-k substrates
Author :
El-Gibari, M. ; Averty, D. ; Lupi, C. ; Brunet, Magali ; Li, Huaqing ; Toutain, S.
Author_Institution :
Inst. de Rech. en Electrotech. et Electron. de Nantes Atlantique (IREENA), Univ. de Nantes, Nantes, France
Abstract :
A study of back-to-back grounded coplanar waveguide-microstrip (GCPW-MS) transitions is presented. By using low-permittivity substrates, both the attenuation and the bandwidth can be improved. An ultra-broad bandwidth up to 77 GHz could be obtained with the BCB polymer as substrate in thin film on low-resistivity silicon wafers.
Keywords :
coplanar waveguides; electrical resistivity; microstrip transitions; permittivity; BCB polymer; GCPW-MS transitions; attenuation; grounded coplanar waveguide-microstrip transitions; low-k substrate; low-loss GCPW-MS transition; low-permittivity substrate; low-resistivity silicon wafer; thin film substrate; ultra-broad bandwidth;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0986
