Speaker
Mr
Mikko Kotiranta
(- Fraunhofer Institute for Applied Solid State Physics IAF, Germany)
Description
A dual redundant low noise amplifier (LNA) for the Q/V-band has been successfully designed and manufactured in this project. The reliability of the amplifier is improved by including a redundant LNA into the amplifier module. The LNAs have been realized as monolithic millimeter wave integrated circuits (MMIC) using the Fraunhofer IAF metamorphic high electron mobility transistor (HEMT) technology. The selection of the operating amplifier branch is carried out with a structure consisting of a novel dual waveguide probe developed by Radiometer Physics GmbH and two shunt MMIC single pole single throw (SPST) switches located in the front of the LNAs. This is a reliable and low loss redundancy solution that allows one to obtain noise figure performance similar to the performance of a redundant amplifier utilizing a waveguide switch while having a smaller size and lower cost.
Primary author
Mr
Mikko Kotiranta
(- Fraunhofer Institute for Applied Solid State Physics IAF, Germany)
Co-author
Mr
Ralf Henneberger
(Radiometer Physics GmbH)
