|Genre:||Health and Food|
|Published (Last):||13 June 2005|
|PDF File Size:||17.63 Mb|
|ePub File Size:||2.4 Mb|
|Price:||Free* [*Free Regsitration Required]|
Metal plates near the top ppdf corner reflectors to reflect radar signals. Retrieved from ” https: A corner reflector is a retroreflector consisting of three mutually perpendicular, intersecting flat surfaces, which corner reflector antenna pdf download waves back directly towards the source, but rreflector. Note that this one is improperly deployed; to best reflect surface radar it should be deployed in the so-called “rain-catching” configuration so as to present an inside corner as shown on the “radar testing” image.
American Radio Relay League. The flat reflecting surfaces can corner reflector antenna pdf download 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. Vertical monopole corner reflector for HF transmission. Views Read Edit View history.
From Wikipedia, the free encyclopedia. Views Read Edit View history. In diagram 1 the green ray is shown as reflecting from only one surface. Optical corner reflectors, called corner cubesmade of three-sided glass prisms, are used in surveying and laser rangefinding.
Corner Reflector Antenna
The reflecting surfaces must be larger than several wavelengths of the radio waves to function. Tower blocks with balconies are often accidental corner reflectors for sound and return a distinctive echo to an observer making a sharp noise, such as a hand clap, nearby.
This page dkwnload last edited on 13 Januaryat Antenna Theory and Design. Antennas for All Applications, 3rd ed. Five arrays of optical corner reflectors have been placed on the Moon for use by Lunar Laser Ranging experiments observing a laser ‘s corner reflector antenna pdf download to measure the Moon’s orbit more precisely than was possible before.
Corner reflector – Wikipedia
All articles with unsourced statements Articles with unsourced statements from November This causes them to show a strong “return” corner reflector antenna pdf download radar screens. In diagram 2, showing a retroreflective spherethe incoming and outgoing rays are approximately parallel in special cases.
Corner Reflector Antenna | Antenna (Radio) | Telecommunications
In surveyingretroreflector prisms are commonly used as targets for long-range electronic distance measurement using a total station. Radio frequency antenna types Antennas radio. In aircraft navigation, corner reflectors are installed on rural runwaysto make them show up on aircraft radar.
In the same diagram the orange and red rays are shown reflecting corner reflector antenna pdf download of two surfaces.
Similarly, in radar interpretation, an object that has multiple reflections from smooth surfaces produces a radar return of greater magnitude than might be expected from the physical size of the object. Marine radar uses X-band microwaves with wavelengths of 2.
John Wiley and Sons. The spacing S of the driven element in front of the point where the reflectors meet is approximately 0.
Corner reflector antenna
In other projects Wikimedia Commons. Antennas PDF 2 ed. Not to be confused with Corner reflector. Languages Deutsch Edit links. Automobile and bicycle tail lights are molded with arrays vorner small corner corner reflector antenna pdf download, with different sections oriented for viewing from different angles.
The three intersecting surfaces often have square shapes. These reflect radio waves coming from in front of them back parallel to the incoming beam.
Not to be confused with Corner reflector antenna. Stacking 2 antennas increases horizontal gain 3 dB. In maritime navigation they are corner reflector antenna pdf download on bridge abutments, buoysships and, especially, lifeboatsto ensure that these show up strongly on ship radar screens. This effect was put to use on the ADM Down,oada small missile which had the same radar cross section as a B