File:Corner reflector antenna.jpg
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Summary
| Description |
English: A corner reflector antenna, a common directional antenna used at UHF frequencies. It consists of a dipole driven element flanked by two screen reflectors, often at a 90° angle. |
| Date | |
| Source | Retrieved June 15, 2014 from J. S. Brown, "Evaluation of unidirectional antennas for 450-460 Mc" in Tele-Tech magazine, Caldwell-Clements Inc., Bristol, Connecticut, Vol. 11, No. 7, July 1952, p. 48 on American Radio History website |
| Author | J. S. Brown |
| Permission (Reusing this file) |
This 1952 issue of Tele-Tech magazine would have the copyright renewed in 1980. Online page scans of the Catalog of Copyright Entries, published by the US Copyright Office can be found here. [1] Search of the Renewals for Periodicals for 1979, 1980, and 1981 show no renewal entries for Tele-Tech. Therefore the magazine's copyright was not renewed and it is in the public domain. |
Licensing
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This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:51, 16 June 2014 | | 293 × 545 (42 KB) | Chetvorno | User created page with UploadWizard |
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