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Development and evaluation of a GaAs based 300 GHz module

: Dyck, Alexander
: Backofen, Rolf; Ambacher, Oliver; Kallfass, Ingmar

Stuttgart: Fraunhofer Verlag, 2021, 123 pp.
Zugl.: Freiburg, Univ., Diss., 2020
Science for systems, 48
ISBN: 978-3-8396-1691-8
Fraunhofer IAF ()
microwave technology; millimeterwave; terahertz range; antenna; RF packaging; radar frontend; Elektrotechnikingenieur; Hochfrequenz-Ingenieur

Radar based technologies become increasingly important in security applications for today's connected industry and society. The utilization of millimeter waves for these systems, in contrast to conventional wavelengths, offer the advantage of being reflected by objects a few millimeters in size, while still being able to penetrate particle clouds and achieving very high resolutions. However, the construction of modules and the design of antennas becomes more and more laborious due to increasing accuracy demands.
This thesis shows the design and manufacture of sub-terahertz antennas and individual front-end modules. Simulations and experimental results of the antennas are presented. Several concepts are proposed and discussed for on-chip and off-chip antennas. For the final system, a simulation tool has been developed which is used to review and investigate the signal's integrity. Measurements characterize the antennas and modules. A transmitter module and a radar module are presented which can be utilized as front-end components. Due to their construction, they can be placed like regular surface mount packages on printed circuit boards.