Multifunktionale Mikrometer- und Millimeterwellen-Module 4M. Teilprojekt: Thermisch-mechanische Charakterisierung innovativer Millimeterwellen-Module Abschlussbericht

Abstract

Aim of the overall project was to combine recent technologies for complex millimeter wave applications as well in the field of traffic control as in that of sensors in automotive and communication technologies. A high electrical, thermal, and mechanical reliability had to be ensured. Precise knowledge of the thermal and mechanical behaviour of the components under construction is an important requirement for design optimisation. Therefore, the design process had to be supported decisively by numerical simulations basing on FEM. Within the IZM part of the project, the well-known and proved macroscopic methodology was adapted onto the specific RF requirements. The main topics of the IZM project were to ensure correct material descriptions for the FE calculations including the corresponding temperature dependent parameters, the evaluation of unavoidable technological tolerances, and recommendations for design improvements as well as detail optimisation. The moulded plastic samples of the LO filtre have been analysed by means of high precision optical and laser optical measurements in orer to characterise tolerances, shape precision, and surface quality. Material properties have been determined for important materials built in the project demonstrators comparing measured and computed results basing on the same samples and comparable loading conditions. This way, a new methodology could be estbalished regarding the special requirements of millimeter wave technology. Sensitivity analyses have been carried out basing on parameter variations by means of FEM. (orig.)Available from TIB Hannover: F00B812+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman