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Circuit Design

The workgroup circuit design is working on integrated circuit design. There are two main research areas, on the one hand analogue integrated circuits and on the other hand optoelectronic integrated circuits.

In the area of analogue integrated circuit design the integration of analogue circuits, e.g. operational amplifiers, mixers or filters, in state-of-the art nanometer CMOS technologies is the main focus. With the ongoing shrinking of the technology the supply voltages drop as well as the characteristics of the devices gets worse and worse. These limiting conditions necessitate new concepts and innovative ideas in circuit design.

The second focus is on optoelectronic integrated circuits. The integration of photosensitive devices in CMOS and BiCMOS silicon technologies is the first step, the next one is the integration of complete optical receivers and signal processing.

Both research areas require beside careful design also the characterization of the realized microchips, which can be done in the own laboratory.

Microwave Engineering

The Microwave Engineering Group covers a variety of research areas from basic to applied research. A state-of-the-art microwave laboratory as well as a variety of circuit, system-, and electromagnetic field simulators make this possible. In the microwave laboratory, almost all types of measurements can be performed ranging from on-wafer to whole systems.

A special feature of the group is the broad knowledge of the researchers, which goes far beyond the microwave technology. This is particularly evident in the implementation of research projects with FPGA-based real-time signal processing, the design of complex microwave systems and the use of strong signal processing algorithms.

Much of the groupīs activity is focused on communication applications. In particular, the group is working on efficient, linear, and robust transceivers. On the transmission side, this includes, for example, switched mode power amplifiers; on the receiver side, the group is investigating interference-proof receivers. Basic research is currently focused on improving polyharmonic distortion (PHD)based nonlinear models.

In the field of UHF RFID, the group has extensive knowledge in the field of reader design and tag localization. As the newest research area, the Microwave Engineering Group investigates the description, modeling and emulation of interference in shared frequency bands (as part of the EFRE Interreg project InterOp).

THz Electronics

Research Activities Overview:

PDF Link Research Activities Overview