
Fraunhofer Institute for Applied Solid State Physics
Dr.-Ing. Ingmar Kallfass
Tullastraße 72
79108 Freiburg
Sub-Project: High Performance Millimetre-Wave Integrated Circuits for Analogue Frontends of 60 GHz Wireless Communication Systems in Non-line-of-sight, High-Range, High-Rate Scenarios
Many of the new exciting application scenarios for 60 GHz wireless communication and data transfer targeted by the EASY-A consortium impose stringent performance requirements on the analogue frontend. This is the case for instance in high-definition video distribution in home theatre, passenger seats or professional (medical etc.) environments, where multi-Gigabit data rates have to be provided over several meters and under non-line-of-sight conditions.
Fraunhofer IAF employs its metamorphic HEMT technology for the design and realisation of the required high-performance 60 GHz frontend transceivers with a focus on:
- High output power to achieve both high-range and high-rate transmission under non-line-of-sight conditions.
- Low-noise receivers for increased system dynamic range.
- High-linearity amplifiers and mixers for the adoption of the complex modulation schemes required in non-line-of-sight conditions.
- On-chip integration of switch networks for single-antenna transceiver architectures as well as the addressing of several antennas for the realisation of spatial diversity concepts.
- Worldwide useable systems require broadband analogue frontends covering the full allocated bandwidth from 57 to 66 GHz.
- Making use of the advantageous combination of high-performance mHEMT-based frontends with SiGe-based transceiver components.
- Multi-functional MMICs ranging from the combination of receive and transmit amplifiers to full single-chip transceivers, offering a cost-effective solution in high-performance, low-volume application scenarios.