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What's In a Name -- Of My Antenna?
On Fri, 25 Mar 2016 21:24:45 -0700, "Sal M. O'Nella"
wrote: I don't know the correct definition, but my definition is an antenna array with inline elements. Those elements can be parasitic or driven. And they can be dipoles, quads, triangles or whatever. My definition of an antenna is a matching transformer which matched the output impedance of a transmitter, with that of free space (377 ohms). Convention has it to name the antenna after the designer. In this case, Shintaro Uda was the student assistant who designed the antenna, while Hidetsugu Yagi was his university instructor. Uda published a paper on the design in Japanese, which nobody seemed to have noticed. A few years later, Yagi translated the paper into English, which finally got some attention. Its publication resulted in the antenna being called a Yagi antenna by the American press. Yagi repeatedly reminded everyone that it was Uda who had designed the antenna, and deserved the credit. However, the best that could be done was the Yagi-Uda contraction, which is awkward and backwards. http://what-is-what.com/what_is/Yagi_Uda_antenna.html "Despite the fact that Hidetsugu Yagi never took credit for the antenna's design, it was his name that the American press used to refer to the concept." http://www.radiocomms.com.au/content/industry/article/yagi-the-man-behind-the-antenna-647231587 "The technology is all down to Prof Hidetsugu Yagi and his assistant Shintaro Uda; more to Uda than Yagi, in fact, so strictly speaking the design should be known as the Uda antenna, or at least Yagi-Uda." Incidentally, I have an FM broadcast Yagi-Uda antenna on my roof that was made by the Yagi-Uda Antenna Company (or something like that). I'll see if I can find the documentation and post a copy. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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