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Newer page: version 4 Last edited on Sunday, October 31, 2004 1:38:05 am by AristotlePagaltzis
Older page: version 3 Last edited on Monday, March 1, 2004 7:56:58 am by JohnMcPherson Revert
@@ -1,8 +1,10 @@
-Fresnel zone: In radio communications, one of a (theoretically infinite) number of a concentric ellipsoids of revolution which define volumes in the radiation pattern of a (usually) circular aperture. 
+A term from radio communcations.  
+  
+One of a (theoretically infinite) number of a concentric ellipsoids of revolution which define volumes in the radiation pattern of a (usually) circular aperture. 
  
 Notes: 
-# The cross section of the first Fresnel zone is circular. Subsequent Fresnel zones are annular in cross section, and concentric with the first.  
-# Note 2: Odd-numbered Fresnel zones have relatively intense field strengths, whereas even numbered Fresnel zones are nulls.  
-# Note 3: Fresnel zones result from diffraction by the circular aperture. (188) 
+# The cross section of the first FresnelZone is circular. Subsequent FresnelZone~s are annular in cross section, and concentric with the first.  
+# Odd-numbered FresnelZone~s have relatively intense field strengths, whereas even numbered FresnelZone~s are nulls.  
+# FresnelZone~s result from diffraction by the circular aperture. (188) 
  
 Interesting read at http://www.zeuswireless.com/support/fresnel-zone.php