Integration of an Antenna/Filter Device, using a Multi-Layer, Multi-Technology Process

In this paper, we discuss about the synthesis and the implementation of a multi-function antenna/filter device, which appears as an optimum response in relation with the system´s physical and electrical evolutions. Due to the extensive development of the uniplanar technology, our investigations concern the integration of a uniplanar slotline dipole directly in a standard Tchebyscheff band-pass filter. As a result, such a combination appears like a convenient solution for improving the performances of the basic antenna. To overcome technological constraints, we show that an optimum approach consists in the use of a multi-layer, multi-technology process. Preliminary experimental results prove the validity of this approach, and allow some extensions to more complex sub-systems.