A 60 GHz SiGe-HBT power amplifier with 20% PAE at 15 dBm output power (2008)
Do, V.H., Subramanian, V., Keusgen, W., Böck, G.
A monolithic power amplifier(PA) operating in the 60 GHz band is presented. The circuit has been designed utilizing an advanced 0.25 mu m SiGe-heterojunction bipolar transistor (HBT) technology,...
Evaluation of multiple antenna configurations (2007)
In this paper an analytical framework for the calculation of transmission between multiple antennas is developed. The method allows an examination of different array configurations with respect to...
Evaluation of multiple antenna configurations (2007)
In this paper an analytical framework for the calculation of transmission between multiple antennas is developed. The method allows a examination of different array configurations with respect to...
Temporal structure of the 60 GHz wireless channel (2007)
Peter, M., Keusgen, W., Kortke, A.
In this paper, the authors present the results of a measurement campaign regarding the short range 60 GHz wireless channel. The measurements were performed inside an airplane cabin by the use of a...
Temporal structure of the 60 GHz wireless channel (2007)
Peter, M., Keusgen, W., Kortke, A.
In this paper, we present the results of a measurement campaign regarding the short range 60 GHz wireless channel. The measurements were performed inside an airplane cabin by the use of a...
Impact of array configuration on channel- and noise-covariance in multiple antenna systems (2007)
In this paper an analytical description for the transmission between multiple antennas is developed. The method allows the determination of covariances and channel capacity with respect to physical...
Measurement and analysis of the 60 GHz in-vehicular broadband radio channel (2007)
Peter, M., Keusgen, W., Kortke, A., Schirrmacher, M.
In this paper, we present the results of a measurement campaign regarding the 60 GHz in-vehicular wireless channel. The measurements have been performed inside an aircraft passenger cabin by the use...
It is introduced a modular channel sounder setup based on laboratory components. The time-domain system covers a bandwidth of 1 GHz. With respect to subsequently presented measurement results, the...
Peter, M., Keusgen, W., Felbecker, R.
It is examined millimeter wave propagation in an application-oriented indoor environment by means of broadband channel measurements and ray-tracing simulations. Fundamental issues concerning the...
SABA - A testbed for a real-time MIMO system (2006)
Borkowski, D., Brühl, L., Degen, C., Keusgen, W., Alirezaei, G., Geschewski, F., ...
The growing demand for high data rates for wireless communication systems leads to the development of new technologies to increase the channel capacity thus increasing the data rate. MIMO...
1.25 Gbit/s indoor radio link extension of a Gigabit Ethernet CWDM access network (2006)
Grosskopf, G., Habel, K., Keusgen, W., Rohde, D., Langer, K.D.
We have demonstrated an experimental full-duplex Gigabit Ethernet indoor radio link between a portable user terminal and a radio access point integrated in a fibre based access network using coarse...
Evaluation of MIMO systems with respect to front-end imperfections (2006)
Degen, C., Koch, O., Keusgen, W., Rembold, B.
In multiuser multiple-input multiple-output (MIMO) systems the performance of joint detection and joint predistortion techniques highly depends on the quality of radio-frequency (RF) components....
Langer, K.D., Vathke, J., Keusgen, W.
In dem Vorhaben wurden Konzepte für breitbandige, möglichst kostengünstige faseroptische Zugangs- und Inhausnetze sowie für breitbandige, drahtlose Anschlussmöglichkeiten portabler Endgeräte...