TY - CHAP A1 - Schott, Matthias A1 - Kuhnert, Holger A1 - Lenk, Friedrich A1 - Hilsenbeck, Jochen A1 - Würfl, Joachim A1 - Heinrich, Wolfgang T1 - 38 GHz push-push GaAs-HBT MMIC oscillator T2 - 2002 IEEE MTT-S International Microwave Symposium digest, June 2 - 7, 2002, Washington State Convention & Trade Center, Seattle, Washington, vol. 2 N2 - Two differential coplanar MMIC HBT oscillators are presented, a fixed frequency and a VCO version. They provide single-ended output at the second harmonic at 38 GHz as well as differential output at 19 GHz. The oscillators show excellent phase noise performance, the fixed-frequency type reaches -95 dBc/Hz at the fundamental frequency and -89 dBc/Hz at the second harmonic, at 100 kHz offset. Y1 - 2002 SN - 0-7803-7239-5 U6 - https://doi.org/10.1109/MWSYM.2002.1011761 SP - 839 EP - 842 PB - IEEE Service Center CY - Piscataway, NJ ER - TY - GEN A1 - Lemmnitz, Christine A1 - Kuhnert, Matthias A1 - Bens, Oliver A1 - Günter, A. A1 - Merz, Bruno A1 - Hüttl, Reinhard F. T1 - Spatial and temporal variations of actual soil water repellency and their influence on surface runoff T2 - Hydrological Processes Y1 - 2008 U6 - https://doi.org/10.1002/hyp.6782 SN - 1099-1085 VL - 22 IS - 12 SP - 1976 EP - 1984 ER - TY - JOUR A1 - Lemmnitz, Christine A1 - Kuhnert, Matthias A1 - Haubruck, S. T1 - Trockenheitsinduzierte Veränderungen hydrologischer Eigenschaften von Oberböden eines gestörten Standorts in der Bergbaufolgelandschaft Y1 - 2005 ER -