Public defence in the field of Radio Engineering M. Sc. (Tech.) Jianfang Zheng

Title of the thesis is “Millimeter-Wave Antennas on Flexible Substrate: Roll-to-Roll Reverse-Offset Printing and Probe Station-Based Characterization”

Printed Millimeter-Wave Antennas & Measurement

This dissertation studies printed millimeter-wave (mm-wave) antenna on flexible substrates and its measurement in probe station environment.

The new generation of communications, e.g., 5G, require higher data-rate, leading the antennas operating at higher frequencies band and smaller feature size. Traditional antenna fabrication methods are expensive and low output. One solution is using the roll-to-roll reverse offset (R2R-RO) printing technique, just like the printed newspapers we read every day, to print antennas with high resolution (few µm) and low cost. Mm-wave antennas printed by the R2R-RO printing technique with measurement results are presented in this dissertation.

Another topic of this dissertation is the characterization of probe-fed antennas. Traditional antenna gain and radiation pattern measurement methods are demanding applying in the probe station environment because of the limited space. This dissertation presents a solution by adding a reflector on top of antennas to address this problem.

Opponent: Professor Mohamed Himdi, Université de Rennes, France

Supervisor:  Professor Zachary Taylor, Aalto University School of Electrical Engineering, Department of Electronics and Nanoengineering.

Electronic thesis

Contact information: Jianfang Zheng, Department of Electronics and Nanoengineering, [email protected] +358449286707

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