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Topic: Corner reflector


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In the News (Tue 29 Dec 09)

  
  Exploratorium: Science Snacks: Corner Reflector
In a corner reflector, multiple reflections reverse the image and invert it.
Corner reflectors are used to make safety reflectors for cars, bicycles, and signs.
Corner reflectors have also been used to bounce laser beams back to the earth from the surface of the moon.
www.exploratorium.edu /snacks/corner_reflector.html   (939 words)

  
 CORNER REFLECTOR ANTENNAS FOR UHF Corner Reflector Antennas
The corner reflector consists of a balanced half wave dipole placed in front of a conducting surface which has been bent at an angle of 90 degrees or less.
If thin sheet metal is used alone for the reflector it is wise to cut the metal 1 inch larger in width and length and use this extra material to form a folded edge around the perimeter to mechanically stiffen the reflector surface.
After the reflector is formed, cut a hole as shown and fasten the flange on the dipole assembly to the reflector as shown.
www.northcountryradio.com /Articles/crfl.htm   (3655 words)

  
 MSN Encarta - Romania
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 Amnesty International Report 2002 - Europe - ROMANIA
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 BBC NEWS | World | Europe | Country profiles | Country profile: Romania
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 ICL - Romania Index   (Site not responding. Last check: 2007-10-26)
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 CIA - The World Factbook -- Romania   (Site not responding. Last check: 2007-10-26)
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 Romania Maps - Perry-Castañeda Map Collection - UT Library Online
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 Romania News - Media Monitoring Service by EIN News   (Site not responding. Last check: 2007-10-26)
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 Ethnologue report for Romania
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 USAID Europe and Eurasia: Romania
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 Romania : Country Studies - Federal Research Division, Library of Congress   (Site not responding. Last check: 2007-10-26)
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 About Romania - Location, Flag, Map, Weather, Transportation
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 The 3-D Corner Reflector
Of special note is the fact that the 3-D corner reflector array--as modeled--is a vertically polarized antenna relative to the bottom plane of the reflector assembly.
The 3-D corner reflector may also be tilted for horizontal polarization, so long as the monopole is parallel to the ground surface.
As we move the monopole further from the deep reflector corner, the front-to-back ratio decreases.
www.cebik.com /vhf/3c.html   (3852 words)

  
 Corner reflector antenna
The critical factors are the corner angle and the spacing between dipole/vertex (fold point of reflector).
Reflector width W should be greater then 1x wave-length for a half-wave radiator.
The reflector can be made of wire netting, sheet metal or even fabricated metal spines arranged in a V-formation.
www.qsl.net /ve3rgw/corner.html   (342 words)

  
 antenneX Home Page
The original design of 3D Corner Reflector Antenna was for the first time described in IEEE Transactions on Antennas and Propagation, July, 1974.
The second modification is regarding the alteration of the shape of the antenna by removing one piece of the bottom reflector surface.
The practical solution of the construction of Shortened 3D Corner Reflector Antenna for 2.4 GHz is given at the end of the article.
www.antennex.com   (1185 words)

  
 SuperNEC - Corner Reflector Antenna Assembly
A corner reflector is a directional antenna making use of a dipole as a feed.
The physical dimensions of a box assembly are defined by its side length, reflector height, corner angle, feed distance from apex and dipole length as shown in the dialog box below.
A typical numerical model of a Corner reflector structure.
www.supernec.com /corner.htm   (73 words)

  
 Panel Antennas Displayed - PROCOM panel antennas, patch antennas and corner reflector antennas displayed online
The PROCOM panel / patch antennas are available in dual polarized and directional versions for a variety of bands, including dual band versions.
In addition we have corner reflector antennas available.
The panel / patch antennas and corner reflector antennas displayed are examples only.
www.procom-dk.com /specialinfo/g0104-panel-antennas-added   (181 words)

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