The fast growth of mobile internet traffic is pushing the wireless networks towards higher capacity while the infrastructure cost and energy consumption need to be minimized. Communication system research has determined that a combination of smaller cell sizes and MIMO technology is a possible way forward. However, cost and energy efficient transmitter and receiver hardware dedicated for such multi-antenna MIMO systems is still not available and an emerging research area.

      
In this project you will design and test a highly efficient MIMO transmitter module for pico base-station applications. The work focuses on a high efficiency and compact switched mode power amplifier which should be co-designed with a suitable antenna element and optimized for wideband/multi-band operation. Advanced measurements using realistic 4G modulated signals will be used to characterize the performance of the manufactured circuit, both at the PA and antenna interface.
This thesis is carried out within the GigaHertz centre and the student will therefore present the results on meetings together with our industrial partners. This gives to student good opportunities to meet engineers and researchers from world leading companies within the microwave industry.
Contact person: Assoc. Prof. Christian Fager (christian.fager@chalmers.se) , tel. 031 - 772 5047