Fully integrated microsystem using microfluidic devices to tune or reconfigure RF circuits

International audienceThis paper presents preliminary de-vices and results of tunable microwave microsystem associating RF circuits and microfluidic components. Dielectric fluids are used to disrupt the permittivity of a microstrip structure and thus change its operating frequency. In this approach, stop-band metallic stubs are placed on top of SU8 structured substrate. Without changing the shape of RF function, its frequency shift is more than 20% when deionized water is flowing in fluidic channels