Mikrowellenschaltkreise fuer Empfaenger hoher Empfindlichkeit Schlussbericht

Modern communication systems require complex receivers. Examples are C- and X-band radar-receivers and low-noise X-band Sat-TV convertors, as well as K-band broadband ICs. First, sub-circuits of corresponding multifunction-ICs were designed, fabricated and measured. Then these were combined to result in complex 1-chip-MMICs, integrating all functions in one single die. This allows for low cost equipment design. The circuit design is based on aspects of performance, manufacturability, and cost. MESFET- and HEMT-technology were used in parallel for comparison. The low cost ion-implanted FETs use gate lengths of 0.5 #mu#m, the HEMTs on molecular beam epitaxial layers use 0.25 #mu#m gate lengths. Specific techniques and very compact designs were used to result in chip area reductions of partly more than 50%. (orig.)SIGLEAvailable from TIB Hannover: F97B1206+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman