Theses and Dissertations

Date of Award


Document Type


Degree Name

Master of Science (MS)


Electrical Engineering

First Advisor

Dr. Heinrich Foltz

Second Advisor

Dr. Nantakan Wongkasem

Third Advisor

Dr. Yong Zhou


Due to the constant demand for speed and capacity in wireless communication, mm-wave bands are getting special interest. Most of the high-speed 5G bands are in the mm-wave region. As the mm-wave signal is prone to absorption and faces a significant free space path loss, an antenna with narrow beam, high gain, and high efficiency is required. The antenna also needs to be working in multiple frequencies, as there is a multitude of mm-wave frequencies allocated by the regulator for 5G communication. In this study, we designed an antenna capable of working in high 5G bands consisting of 25GHz,28GHz, and 38GHz. The idea of the metasurface is used to make the antenna resonant for multiple frequencies of mm-wave operation. The structure is tapered and curved in multiple places to funnel the flow of surface current, thereby generating a very sharp beam. In the numerical analysis using CST microwave studio, the efficiency is found to be around 90% and the average gain is approximately 4dB, combining all three bands.


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