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  Topic: Definition help
W4BSG

Replies: 4
Views: 16497

PostForum: Questions Related to Antenna Theory   Posted: Tue Jun 16, 2009 5:55 pm   Subject: Definition help
I realize that physical and effective areas are different, but they ARE related. Over a fair range of sizes, the relationship is scalable. However, in most circular functions, Pi has a fixed function ...
  Topic: Definition help
W4BSG

Replies: 4
Views: 16497

PostForum: Questions Related to Antenna Theory   Posted: Tue Jun 16, 2009 3:13 pm   Subject: Definition help
I am still confused. I was of the opinion that Aperture had units of Area, but your words give the units as power. As I was using it, Power density * aperture = power. For a circular aperture of diam ...
  Topic: Definition help
W4BSG

Replies: 4
Views: 16497

PostForum: Questions Related to Antenna Theory   Posted: Mon Jun 15, 2009 1:26 am   Subject: Definition help
Hello-
I have a question, based on several articles I have reviewed today. I have seen "Effective Aperture" related to the expression:

Ae=(lambda)^2/(4 Pi)

But I thought it should be ...
 
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