enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Paris Herouni - Wikipedia

   en.wikipedia.org/wiki/Paris_Herouni

   Paris Misaki Herouni (Armenian: Պարիս Միսակի Հերունի, December 17, 1933 – December 5, 2008) [1] [2] was a Soviet and Armenian physicist and engineer. He was a member of the Armenian National Academy of Sciences in the fields of radio-physics, radio-engineering, and radio-astronomy and the head of the Antenna Systems chair, which he founded, at the National Polytechnic ...

3. Passive repeater - Wikipedia

   en.wikipedia.org/wiki/Passive_repeater

   A typical microwave repeater link setup, this one located near Salt Lake City, Utah, USA(removed in 2013) Operation principle. A passive repeater or passive radio link deflection, is a reflective or sometimes refractive panel or other object that assists in closing a radio or microwave link, in places where an obstacle in the signal path blocks any direct, line of sight communication.

4. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Likewise, for antennas that combine one or more simple antennas with a curved metal surface or flat reflecting screen, the metal dish or curtain functions for radio waves similar to a mirror in optical systems, hence those antennas are analogous to reflecting telescopes and Kleig lights.

5. Curtain array - Wikipedia

   en.wikipedia.org/wiki/Curtain_array

   Curtain arrays were originally developed during the 1920s and 1930s when there was a lot of experimentation with long distance shortwave broadcasting. The underlying concept was to achieve improvements in gain and/or directionality over the simple dipole antenna, possibly by folding one or more dipoles into a smaller physical space, or to arrange multiple dipoles such that their radiation ...

6. Cassegrain reflector - Wikipedia

   en.wikipedia.org/wiki/Cassegrain_reflector

   The centrally located sub-reflector serves to focus radio frequency signals in a similar fashion to optical telescopes. An example of a cassegrain radio antenna is the 70-meter dish at JPL's Goldstone antenna complex. For this antenna, the final focus is in front of the primary, at the top of the pedestal protruding from the mirror.

7. This shaving tool is totally blade-free [Video]

   www.aol.com/lifestyle/shaving-tool-totally-blade...

   For premium support please call: 800-290-4726 more ways to reach us

8. Reflector (antenna) - Wikipedia

   en.wikipedia.org/wiki/Reflector_(antenna)

   a passive element slightly longer than and located behind a radiating dipole element that absorbs and re-radiates the signal in a directional way as in a Yagi antenna array. a flat reflector such as used in a Short backfire antenna or Sector antenna. a corner reflector used in UHF television antennas. a cylindrical reflector as used in Cantenna.

9. France says 'merci' as Notre-Dame Cathedral rises from ruins ...

   www.aol.com/news/notre-dame-cathedral-reopens...

   PARIS (Reuters) -The word "Merci" was projected on to the front of Paris' Notre-Dame cathedral as it reopened on Saturday, in thanks for its salvation after a devastating fire that brought the 860 ...