Noise induced timing jitter: a general restriction for high speed RSFQ devices. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 15 (2005), 2, S. 344-347
https://doi.org/10.1109/TASC.2005.849830
Tuning of the RSFQ gate speed by different Stewart-McCumber parameters of the Josephson junctions. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 15 (2005), 2, S. 284-287
https://doi.org/10.1109/TASC.2005.849791
Investigation of the parasitic coupling effects in densely packaged RSFQ digital circuits. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 15 (2005), 2, S. 396-399
https://doi.org/10.1109/TASC.2005.849859
HTS pulse-stretcher and second order modulator: design and first results. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 15 (2005), 2, S. 457-460
https://doi.org/10.1109/TASC.2005.849873
Digital SQUID sensor based on SFQ technique. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 15 (2005), 2, S. 304-307
https://doi.org/10.1109/TASC.2005.849808
On the use of time-domain reflectometry for full-wave electromagnetic optimization of nonuniform waveguides. - In: IEEE transactions on microwave theory and techniques, Bd. 52 (2004), 1, S. 286-291
We present the application of an optimization technique in time domain for the design of cascaded waveguide structures. In this case, the traditional high-dimensional optimization problem can be decomposed into several one- or two-dimensional problem in the time domain. For this purpose, the time-domain response is divided into a series of small time intervals that have to be optimized successively utilizing time-domain reflectometry. A finite-difference time-domain simulator is used to obtain the time-domain response. The number of function calls (expensive full electromagnetic simulations) could be reduced up to 90% in comparison to a frequency-domain optimization. Numerical and measurement results are presented to validate the new technique.
https://doi.org/10.1109/TMTT.2003.820903
Low-temperature co-fired ceramic microwave switch matrix for satellite communications. - In: Annual report, (2004), S. 88-89
http://www.db-thueringen.de/servlets/DocumentServlet?id=7356
Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels. - In: IEEE transactions on signal processing, ISSN 1941-0476, Bd. 52 (2004), 2, S. 461-471
http://dx.doi.org/10.1109/TSP.2003.821107
An introduction to the multi-user MIMO downlink. - In: IEEE communications magazine, ISSN 1558-1896, Bd. 42 (2004), 10, S. 60-67
http://dx.doi.org/10.1109/MCOM.2004.1341262
Smart antenna technologies for future wireless systems: trends and challenges. - In: IEEE communications magazine, ISSN 1558-1896, Bd. 42 (2004), 9, S. 90-97
http://dx.doi.org/10.1109/MCOM.2004.1336725