The development of the 5th generation (5G) mobile communication is well underway with the sub-6GHz part already being rolled out in many countries. The roll-out of 5G millimetre-wave (mm-wave) technology is expected around the year 2025, which will bring unprecedented speeds for wireless communication services. New application services will arise using this technology. One example is car sharing services that use self-driving cars that communicate with each other to optimise traffic flow and avoid accidents. This application also has the potential to lower CO2 emissions and free up much needed space in cities that is now occupied by mostly unused, parked cars. However, with mm-wave communications still being in its infancy, research in this area will be needed for decades to come to unleash the potential this technology can bring to society.
At this point, mm-wave communications technology is not yet very energy efficient itself. Here, improved semiconductor technologies are needed, for example, that allow the use of more efficient amplifier architectures. Moreover, better interconnect technologies are needed to minimise the loss between amplifiers and antennas. To achieve this, the antennas need to be integrated in the package of the integrated circuit (IC) or even on the IC itself. This close integration of antennas and amplifiers gives rise to co-designing both components rather than splitting the development into two parts and possibly outsourcing one of the tasks to an external company. By co-designing antennas and amplifiers new possibilities to improve the performance of the mm-wave front-end arise. For example, instead of designing both components for the usual 50 Ohm reference impedance, direct matching schemes can be employed that allows both components to operate at or close to their ideal working point.
This PhD position targets the co-design of mm-wave antennas and amplifiers. The goal is to investigate the potential this new design approach can have for future beyond-5G wireless communications. The development of a proof-of-concept demonstrator using the technology of our collaboration partners is explicitly targeted.
Previous experience in using scientific and engineering software packages such as Matlab, CST, ADS, etc. are advantageous.
Do you recognize yourself in this profile and would you like to know more? Please contact dr. U. Johannsen, u.johannsen[at]tue.nl.
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