Conductor-Backed Coplanar Waveguide to Microstrip Transition on BCB Polymer Thin Film with Bandwidth over 60 GHz

Mohammed El Gibari (1) , Massinissa Hadjloum (1) , Hong Wu Li (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

A conductor-backed coplanar waveguide to microstrip via-hole less transition realized on a commercial BCB (Benzocyclobutene) polymer thin film is studied in this paper. By using thin substrates with a low-permittivity, the achieved experimental bandwidth covers the frequency band from 1 GHz to 69 GHz. This transition, using electromagnetic coupling between the bottom and top ground planes, is very useful and requested in component packaging, on-wafer measurements of microstrip based monolithic microwave integrated circuit and for interconnections in hybrid circuits including both microstrip and coplanar structures.

Domaines: Sciences de l'ingénieur [physics]

Mohammed El Gibari, Massinissa Hadjloum, Hong Wu Li. Conductor-Backed Coplanar Waveguide to Microstrip Transition on BCB Polymer Thin Film with Bandwidth over 60 GHz. International Conference on Microwave and Photonics, Dec 2015, Dhanbad, India. pp.ICMAP02, ⟨10.1109/ICMAP.2015.7408757⟩. ⟨hal-01241506⟩