Chair of Microwave and Communication Engineering

Chair of Microwave and Communication Engineering

Welcome to the website of the Chair of Microwave and Communication Engineering.

As of July 1, 2021, Prof. Dr.-Ing. habil. Holger Maune has taken over the leadership of the chair. This page will be updated with corresponding content in the coming days/weeks. Among other things, current information on research and courses will soon be available here.

Communication technology and high frequency technology are closely intertwined. People and machines are becoming increasingly mobile, so that wired communication, whether electrical or optical, is receding further and further into the background. 5th generation (5G) mobile communications systems allow (1) ultra-fast connections, up to 10 Gbit/s in the final configuration, (2) a very high density of subscribers. Worldwide, 100 billion mobile devices are expected to be addressable simultaneously, and (3) real-time transmission with latency times of less than one millisecond. Other aspects are energy efficiency and data security. Each communication system has individual requirement profiles. For example, a simple battery-powered sensor will certainly not support a 10 Gbit/s data rate. If it is then still the temperature sensor in an apartment, real-time transmission is not necessary, since update rates of minutes are sufficient for controlling the heating, for example. However, many of these sensors will be installed in an apartment, so that a high node density will quickly develop. In this context, the chair researches innovative concepts and components for smart communication systems, e.g. reconfigurable filters, tunable power amplifiers and adaptive antenna systems. For this purpose, established and novel technologies such as semiconductors and functional materials are used to realize high-frequency components and systems.

In addition to communication, high-frequency signals are also suitable for remote sensing. Here, properties of an object remote from the measurement sensor are measured using electromagnetic waves. The best-known example of this is radar technology, which can measure the position and/or speed of a target. However, in addition to these common properties, other properties such as the dielectric signature or the geometry of a material can also be determined. There are numerous fields of application for these systems, such as radio frequency-based contactless diagnosis and treatment systems in medical technology, wireless sensor nodes, mobile communication systems and radiolocation (localization). Besides the design and realization of such systems, material analysis and modeling are of high relevance. In this context, the chair researches systems for material characterization and identification. For this purpose, classical methods, such as impedance spectroscopy in combination with problem-adapted sensor/actuator systems, are usually used. The modeling of the materials and the parameter extraction based on it are only one of many aspects in these work packages.

Last Modification: 02.11.2021 - Contact Person: Prof. Dr.- Ing. habil. Holger Maune