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- Corner_reflector_antenna abstract "A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies. It was invented by John D. Kraus in 1938. It consists of a dipole driven element mounted in front of two flat rectangular reflecting screens joined at an angle, usually 90°. Corner reflectors have moderate gain of 10-15 dB, high front-to-back ratio of 20-30 dB, and wide bandwidth. They are widely used for UHF television receiving antennas, point-to-point communication links and data links for wireless WANs, and amateur radio antennas on the 144, 420, and 1296 MHz bands. They radiate linearly polarized radio waves and can be mounted for either horizontal or vertical polarization. The corner reflector antenna should not be confused with a corner reflector, a passive device used to reflect radio waves back toward the source. The flat reflecting surfaces can be metal sheets, but are more often made of wire screen or rod elements parallel to the driven element, to reduce weight and wind loads on the antenna. The angle θ between the sides is most commonly 90°. The gain increases as the angle narrows, but the increase below 90° is minimal, and requires longer reflector screens be used. However, angles down to 45° have been used.The spacing (S) of the driven element in front of the point where the reflectors meet is approximately 0.5λ but is not very critical; for 90° antennas the gain doesn't vary more than 1.5 dB for S between 0.25λ and 0.75λ. The radiation resistance of the dipole increases with this spacing, so the spacing can be adjusted to match the driven element to the feed line. Bowtie driven elements are often used for wide bandwidth applications like television antennas.The antenna can be regarded as a form with a gain intermediate between a plane reflective array antenna and a parabolic antenna. It is particularly suitable in applications where a broadband directional antenna around one to 1 1/2 wavelengths in size is needed. A parabolic dish this size has no advantage in gain over the corner reflector, so its simplicity of design and construction make it attractive.".
- Corner_reflector_antenna thumbnail Corner_reflector_antenna_diagram.svg?width=300.
- Corner_reflector_antenna wikiPageExternalLink QS11-40-Kraus.pdf.
- Corner_reflector_antenna wikiPageID "4378117".
- Corner_reflector_antenna wikiPageLength "6661".
- Corner_reflector_antenna wikiPageOutDegree "23".
- Corner_reflector_antenna wikiPageRevisionID "697943230".
- Corner_reflector_antenna wikiPageWikiLink Amateur_radio.
- Corner_reflector_antenna wikiPageWikiLink Bandwidth_(signal_processing).
- Corner_reflector_antenna wikiPageWikiLink Category:Radio_frequency_antenna_types.
- Corner_reflector_antenna wikiPageWikiLink Corner_reflector.
- Corner_reflector_antenna wikiPageWikiLink Dipole_antenna.
- Corner_reflector_antenna wikiPageWikiLink Directional_antenna.
- Corner_reflector_antenna wikiPageWikiLink Driven_element.
- Corner_reflector_antenna wikiPageWikiLink Front-to-back_ratio.
- Corner_reflector_antenna wikiPageWikiLink Gain_(electronics).
- Corner_reflector_antenna wikiPageWikiLink Linear_polarization.
- Corner_reflector_antenna wikiPageWikiLink Monopole_antenna.
- Corner_reflector_antenna wikiPageWikiLink Parabolic_antenna.
- Corner_reflector_antenna wikiPageWikiLink Point-to-point_(telecommunications).
- Corner_reflector_antenna wikiPageWikiLink Radiation_resistance.
- Corner_reflector_antenna wikiPageWikiLink Reflective_array_antenna.
- Corner_reflector_antenna wikiPageWikiLink Television_antenna.
- Corner_reflector_antenna wikiPageWikiLink Tropospheric_scatter.
- Corner_reflector_antenna wikiPageWikiLink Ultra_high_frequency.
- Corner_reflector_antenna wikiPageWikiLink Very_high_frequency.
- Corner_reflector_antenna wikiPageWikiLink Wireless_WAN.
- Corner_reflector_antenna wikiPageWikiLink Yagi-Uda_antenna.
- Corner_reflector_antenna wikiPageWikiLink File:Corner_reflector_antenna_diagram.svg.
- Corner_reflector_antenna wikiPageWikiLinkText "Corner reflector".
- Corner_reflector_antenna wikiPageWikiLinkText "corner reflector antenna".
- Corner_reflector_antenna wikiPageWikiLinkText "corner reflector".
- Corner_reflector_antenna wikiPageWikiLinkText "corner reflectors".
- Corner_reflector_antenna align "center".
- Corner_reflector_antenna caption "450".
- Corner_reflector_antenna caption "Corner reflector UHF TV antenna from 1954 with bowtie dipole driven element".
- Corner_reflector_antenna caption "Dual stacked corner reflector UHF TV antenna. Stacking 2 antennas increases horizontal gain 3 dB.".
- Corner_reflector_antenna caption "Large 120 ft high two bay corner reflector antenna for military troposcatter communication link, Massachusetts, 1955".
- Corner_reflector_antenna caption "Modern UHF TV antenna consisting of 3 Yagi arrays in front of a common corner reflector.".
- Corner_reflector_antenna caption "Vertical monopole corner reflector for HF transmission.".
- Corner_reflector_antenna direction "horizontal".
- Corner_reflector_antenna image "Corner reflector TV antenna.png".
- Corner_reflector_antenna image "Corner reflector antenna.jpg".
- Corner_reflector_antenna image "Dual corner reflector UHF TV antenna.png".
- Corner_reflector_antenna image "Monopole corner reflector antenna.png".
- Corner_reflector_antenna image "Troposcatter corner reflector antenna 1955.jpg".
- Corner_reflector_antenna image "UHF-antenn.jpg".
- Corner_reflector_antenna width "100".
- Corner_reflector_antenna width "103".
- Corner_reflector_antenna width "108".
- Corner_reflector_antenna width "162".
- Corner_reflector_antenna width "165".
- Corner_reflector_antenna width "241".
- Corner_reflector_antenna wikiPageUsesTemplate Template:Antenna_Types.
- Corner_reflector_antenna wikiPageUsesTemplate Template:Cite_magazine.
- Corner_reflector_antenna wikiPageUsesTemplate Template:Multiple_image.
- Corner_reflector_antenna wikiPageUsesTemplate Template:Reflist.
- Corner_reflector_antenna subject Category:Radio_frequency_antenna_types.
- Corner_reflector_antenna hypernym Antenna.
- Corner_reflector_antenna type Building.
- Corner_reflector_antenna comment "A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies. It was invented by John D. Kraus in 1938. It consists of a dipole driven element mounted in front of two flat rectangular reflecting screens joined at an angle, usually 90°. Corner reflectors have moderate gain of 10-15 dB, high front-to-back ratio of 20-30 dB, and wide bandwidth.".
- Corner_reflector_antenna label "Corner reflector antenna".
- Corner_reflector_antenna sameAs Q1134067.
- Corner_reflector_antenna sameAs Winkelreflektorantenne.
- Corner_reflector_antenna sameAs m.010x878s.
- Corner_reflector_antenna sameAs Q1134067.
- Corner_reflector_antenna wasDerivedFrom Corner_reflector_antenna?oldid=697943230.
- Corner_reflector_antenna depiction Corner_reflector_antenna_diagram.svg.
- Corner_reflector_antenna isPrimaryTopicOf Corner_reflector_antenna.