10 research outputs found
Der "Advanced Airport Data Link" - Konzept und Demonstrator für einen<BR> modernen Flughafen-Datenlink
No full textA longitudinal twin family study of the life course and individual development (TWINLIFE): Data collection and instruments of wave 1 face-to-face interviews
No full textA cryogenic front end for CDMA and UMTS wireless base stations
No full textThe design and the laboratory performance of a cryogenic front end for CDMA and UMTS wireless base stations is described together with the results of a first field test at a CDMA base station in the region of Tangshan in China. The central elements of the cryogenic front ends are the cryocooler, the cryostat and the cryogenic platform mounted with up to 6 HTS pre-selection filters of high selectivity combined with the corresponding cryogenic low noise amplifiers of high dynamic range as well as the associated control electronics. Design and performance of the UMTS and CDMA filters are described and the characteristic parameters of the cryogenic low noise preamplifier are given. An analysis of the results of the first field test is discussed
(1) Supraleiter und neuartige Keramiken fuer die Mobilfunktechnik der Zukunft. (2) Ferrimagnetisch- und ferroelektrisch abstimmbare HTSL-Bandstoppfilter
No full textAvailable from TIB Hannover: F04B1441 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman
