![]() It is a further object of the present invention to provide a loop antenna having an even number of turns of a length of one or more wave lengths around each turn in which substantially no voltage components are present and the only voltage existing is that due to the impedance between the adjacent loops. ![]() While the main point of Moore's patent was the two turn single loop design which is not the antenna termed "quad" today, the patent does include a mention and illustration of a two element unidirectional "quad", and describes the time when the full wave loop concept was developed: Moore describes his antenna as "a pulled-open folded dipole". ![]() He developed this antenna to resolve issues caused by large coronal discharges while using a beam antenna in the thin air of higher altitudes.
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