Reflective array antenna
In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of a flat surface designed to reflect the radio waves in a desired direction. They are a type of array antenna. They are often used in the VHF and UHF frequency bands. VHF examples are generally large and resemble a highway billboard, so they are sometimes called billboard antennas. Other names are bedspring array and bowtie array depending on the type of elements making up the antenna. The curtain array is a larger version used by shortwave radio broadcasting stations.
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Reflective array antenna
In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of a flat surface designed to reflect the radio waves in a desired direction. They are a type of array antenna. They are often used in the VHF and UHF frequency bands. VHF examples are generally large and resemble a highway billboard, so they are sometimes called billboard antennas. Other names are bedspring array and bowtie array depending on the type of elements making up the antenna. The curtain array is a larger version used by shortwave radio broadcasting stations.
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In telecommunications and rada ...... geometry of a tree structure.
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"Bowtie" UHF TV antenna from 1954
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"Panel array" VHF TV broadcasting antenna. This type is widely used for UHF today
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A modern form of reflective ar ...... ly polarized TV transmissions.
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An ALLISS antenna, a modular t ...... g to distant areas by skywave.
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Enormous reflective array ante ...... wires, just visible in center.
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VHF reflective array TV antenn ...... short ones 174–216 MHz.
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In telecommunications and rada ...... e radio broadcasting stations.
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Reflective array antenna
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