The log periodic antenna made possible broadband reception of color television signals.
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Horizontal Log Periodic Antenna tower at NRTF Niscemi.
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The log periodic antenna was invented by Dwight E . Isbell, Raymond DuHamel and variants by Paul Mayes.
4.
PaST will consist an array of some ten-thousand log-periodic antennas spread over several square kilometers.
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The log-periodic antenna has existed for decades, but are any other fractal designs in use for TV reception?
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Equipment included three Collins Radio 250 kW HF transmitters and five log-periodic antennas directed at East Asia and South-east Asia.
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In 1983, a steerable-beam HF radar with 16 log-periodic antennas began operations at Goose Bay, Labrador, Canada.
8.
With more complex antenna structures ( such as the log-periodic antenna ) the effects of mutual coupling can make the phase centre locations unknown.
9.
The log periodic antenna is similar in appearance to a Yagi, but all of its elements are driven elements, connected to the transmitter or receiver.
10.
So a typical rooftop Yagi or log-periodic antenna with horizontal conductors, as viewed from a second station toward the horizon, is necessarily horizontally polarized.
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