PIN diodes have an additional P layer which is why Sarkes Tarzian never got into that part of the technology. ST made some SCR's and 45KV 2 ma diodes were many layers of diodes stacked and soldered together.? Some of the ST "avalanche diodes" were doped with aluminum which is a "P" type material but that was before PIN variable resistance diodes were promoted as commercially useful. That was back in 1972 before we closed all the ST plants. I was a "project engineer" in the back of the ST Broadcast Division lab where we designed and manufactured RS-170 video special effects systems. My later business partner was the manager of the semiconductor manufacturing, the late Al Cain.
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But I need to apologize for diverging off the topic of "loop" antennas. Take a Poynting vector and plop it into:?
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Turn the "crank" and get a voltage out. . .
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Jim/VEZ
James Redding WA9VEZ
