Pavel Vilner


Viterbi Faculty of Electrical Engineering, Technion

Design of a Dense Antenna Array in 60-80GHz Range with an Emphasis on Utilizing Decoupling and Optimal Feeding Techniques

This thesis presents a research in the performance optimization of a generic multiport antenna. The investigation encompasses transmission, reception, and simultaneous transmission and reception operations. The last situation is viewed as a particularly significant, because it enables a full-duplex communication by independent electronically steerable sub-arrays on board of a small mobile device in the next generation of wireless networks.   Two distinct approaches, finding vectors of optimal beamforming coefficients for the transmitting and the receiving sub-arrays and finding a matrix representation of an optimal matching network, are presented. For each of the antenna operation directions, its specific performance characteristics, namely far-field radiation parameters for the transmission, signal-to-noise ratio for the reception and transmitter-to-receiver power leakage for the simultaneous operation, are addressed. Wider system concerns, such as an ease of the matching network hardware realization and designing the transmitter excitations to account for the power amplifiers efficiency characteristics are also reviewed.   The proposed approaches are evaluated by a numerical simulation. Models of the antenna arrays are created and solved using a commercial full-wave 3D electromagnetic simulator, whereas the investigated optimization algorithms are applied in the post-processing stage using a mathematical software. The results indicate that the suggested methods successfully improve the performance of the antennas under test over the classical uniform beamforming. * MSc seminar under supervision of Prof. Emanuel Cohen.

Date: Thu 14 Feb 2019

Start Time: 11:30

End Time: 12:30

1061 | Electrical Eng. Building