dipole-antenna

Science Dictionary
dipole   (dī'pōl')  Pronunciation Key 
  1. A pair of electric charges or magnetic poles, of equal magnitude but of opposite sign or polarity, separated by a small distance.

  2. A molecule having two such charges or poles.

  3. An antenna consisting of two rods of equal length extending outward in a straight line. Dipole antennas are usually used for frequencies below 30 megahertz.


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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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