Yagi Antenna

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Yagi Directive Shortwave Antenna

1994 Milestone Ceremony recognizing the work done on the Yagi Antenna
Japan. In 1926, Professor Hidetsugu Yagi and his assistant, Shintaro Uda published on the sensitive and highly-directional antenna they designed and constructed using closely-coupled parasitic elements. The antenna, which is effective in the higher-frequency ranges, has been important for radar, television, and amateur radio

The 1924 Directional Antenna is an IEEE Milestone in Electrical Engineering and Computing.

Further References

Brittain, James. E. “Yagi on a Microwave Communication System,” Proceedings of the IEEE 72, No. 5 (May 1984).

Yagi, Hidetsugu. U.S. Patent No. 1,860,123, "Variable Directional Electric Wave Generating Device", filed 3 September 1926.

________. "Beam Transmission of Ultra Short Waves," Proceedings of the Institute of Radio Engineers 16, No. 6 (June 1928), p. 715-40.