Mathematical analysis of multiplexing techniques for SNSPD arrays. - In: IEEE transactions on applied superconductivity, ISSN 1558-2515, Bd. 23 (2013), 3, 2501005, insges. 5 S.
https://doi.org/10.1109/TASC.2013.2247455
Experimentally verified inductance extraction and parameter study for superconductive integrated circuit wires crossing ground plane holes. - In: Superconductor science and technology, ISSN 1361-6668, Bd. 26 (2013), 1, 015016, insges. 8 S.
As the complexity of rapid single flux quantum (RSFQ) circuits increases, both current and power consumption of the circuits become important design criteria. Various new concepts such as inductive biasing for energy efficient RSFQ circuits and inductively coupled RSFQ cells for current recycling have been proposed to overcome increasingly severe design problems. Both of these techniques use ground plane holes to increase the inductance or coupling factor of superconducting integrated circuit wires. New design tools are consequently required to handle the new topographies. One important issue in such circuit design is the accurate calculation of networks of inductances even in the presence of finite holes in the ground plane. We show how a fast network extraction method using InductEx, which is a pre- and post-processor for the magnetoquasistatic field solver FastHenry, is used to calculate the inductances of a set of SQUIDs (superconducting quantum interference devices) with ground plane holes of different sizes. The results are compared to measurements of physical structures fabricated with the IPHT Jena 1 kA cm2 RSFQ niobium process to verify accuracy. We th practical circuits and show excellent accuracy.
http://dx.doi.org/10.1088/0953-2048/26/1/015016
Beamspace direction finding based on the conjugate gradient and the auxiliary vector filtering algorithms. - In: Signal processing, Bd. 93 (2013), 4, S. 641-651
https://doi.org/10.1016/j.sigpro.2012.09.001
Ultra-wideband MIMO ambiguity function and its factorability. - In: IEEE transactions on geoscience and remote sensing, Bd. 51 (2013), 1, S. 504-519
http://dx.doi.org/10.1109/TGRS.2012.2201486
Directional analysis with microphone array mounted on rigid cylinder for directional audio coding. - In: Journal of the Audio Engineering Society, ISSN 1549-4950, Bd. 60 (2012), 5, S. 311-324
Calculation of Lorentz forces on coils for transcranial magnetic stimulation during magnetic resonance imaging. - In: IEEE transactions on magnetics, ISSN 1941-0069, Bd. 48 (2012), 11, S. 4058-4061
http://dx.doi.org/10.1109/TMAG.2012.2202888
On-orbit verification of a 4 × 4 switch matrix for space applications based on the low temperature co-fired ceramics technology. - In: Frequenz, ISSN 2191-6349, Bd. 66 (2012), 11/12, S. 355-362
http://dx.doi.org/10.1515/freq-2012-0106
Reconfigurable 4 × 4 switch matrix for Ka-band Geo-stationary satellite mission. - In: Frequenz, ISSN 2191-6349, Bd. 66 (2012), 11/12, S. 347-357
http://dx.doi.org/10.1515/freq-2012-0105
Design and test of an imaging system for UWB breast cancer detection. - In: Frequenz, ISSN 2191-6349, Bd. 66 (2012), 11/12, S. 387-394
http://dx.doi.org/10.1515/freq-2012-0103
State modelling of the land mobile propagation channel for dual-satellite systems. - In: EURASIP journal on wireless communications and networking, ISSN 1687-1499, (2012), 228, S. 1-21
https://doi.org/10.1186/1687-1499-2012-228