One of my best friends in Korea, Professor Dr. Jong-Myung Woo of Chungnam National University in Daejeon City, often invites me to make a lecture at his university. He helped me to receive my Amateur Radio Station licence (Callsign HL3ZCG) at his Antenna Laboratory in 2014.

Acknowledgments : Special Thanks to Professor Dr. Jong-Myung Woo, Professors, Associate Professors, Lecturers, Students, and my Amateur Radio Friends in Korea for their kind hospitality.

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