Qualification of a compact Ka-band switch matrix for on-orbit-verification. - In: GeMiC 2008, (2008), S. 454-457
Performance evaluation of range-based location estimation algorithms under LOS situation. - In: GeMiC 2008, (2008), S. 248-251
Detection of trapped people by UWB radar. - In: GeMiC 2008, (2008), S. 240-243
Phase engineering techniques in superconducting quantum electronics. - In: Journal of physics. Conference Series / Institute of Physics. - Bristol : IOP Publ., 2004- , ISSN: 1742-6596 , ZDB-ID: 2166409-2, ISSN 1742-6596, Bd. 97 (2008), 1, S. 012196, insges. 9 S.
Due to the pulse driven nature of the Rapid Single Flux Quantum electronics nearly every basic cell requires the capability of temporary data storing. Implementing phase shifting elements in this essential device leads to several advantages concerning the device characteristics. There are different concepts enabling phase shifting elements. We give a comparative overview about these approaches. The effect of this novel element on a basic cell is analyzed exampling a toggle-flip-flop. Based on the effective noise temperature determined from the experimental results of a standard flip-flop, the bit error rate for several toggle-flip-flop realizations containing different phase shifting elements was calculated.
http://dx.doi.org/10.1088/1742-6596/97/1/012196
Holographische Modalanalyse mit skalierbarem Kugelarray. - In: Fortschritte der Akustik, ISBN 978-3-9808659-3-7, (2007), S. 885-886
A design formulation of a periodic high-impedance surface for a miniaturised antenna array. - In: Metamaterials 2007, (2007), S. 503-506
The focus of our work is the miniaturisation of a dipole antenna array by two complementary means. On the one hand, we want to place the antennas close above a high-impedance surface. On the other hand, we want to reduce the coupling between the antennas so that the elements can be placed at separations less than [lambda]/2. We derive a formulation to design analytically a high-impedance surface consisting of a periodic structure, which displays a surface wave band gap for a range of wavelengths much larger than the periodicity of the structure. For frequencies below the band gap, the structure supports backward waves, above the band gap forward waves are supported. Our considerations are verified by measurements.
Comparison of high resolution patterning technologies for LTCC microwave circuits. - In: Proceedings and exhibitor presentations, (2007), insges. 6 S.
2D measurements of magnetic field near an oscillating interface between two fluids carrying an electrical current. - In: Steel research international, ISSN 1611-3683, Bd. 78 (2007), 5, S. 433-437
Testing for Kronecker separability in measured channels/ W. Kotterman; R. S. Thomä. - In: European Conference on Antennas and Propagation, ISBN 978-0-86341-842-6, (2007), insges. 6 S.
On the influence of incomplete data models on estimated angular distributions in channel characterisation. - In: European Conference on Antennas and Propagation, ISBN 978-0-86341-842-6, (2007), insges. 8 S.