Linearisierter Verstaerker fuer Satellitenanwendungen (LVS). Arbeitspaket 4000: Validierung von MMIC Hybridschaltungen Abschlussbericht

Abstract

The WP 4000 was performed in cooperation with Bosch Telecom, DaimlerChrysler Aerospace in Ulm (DASA) and in Ottobrunn (DSS) and United Monolithic Semiconductors (UMS). The aim of the program was the space evaluation of the PH25 process for production of MMIC hybrid circuits as well as the development of preamplifier linearizer circuits in C and Ku band. The PH25 process was evaluated by UMS in the frame of the program with technical support by ESA. For this purpose, UMS manufactured test structures and performed life tests with a duration of up to 4000 h with different bias and temperature conditions. During the tests, on one hand, the wear-out mechanism could be identified. On the other hand it came out that the components achieve the life time required for space applications. DASA designed the circuits for the linearizer-preamplifier device, which were manufactured at UMS, with the goal to integrate the device into the traveling wave tube. The task of DSS in this program was the manufacture of diode linearizers, which were integrated into the amplifier modules. Bosch Telecom pursued the concept of integrating the preamplifier-linearizer circuit into the power supply of the traveling wave tube. Bosch also designed circuits which were manufactured at UMS. (orig.)Available from TIB Hannover: F00B624 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany); DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Bonn (Germany)DEGerman