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circular polarization help
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lovhana



Joined: 05 Apr 2007
Posts: 20
Post01 Mar 2009 13:48   

circular polarization help
hi..anyone here know how to determine whether the antenna is perfectly circular polarized or elliptical..can someone explain more about this..
thnx..
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Kohi_boy



Joined: 20 Apr 2008
Posts: 133
Helped: 15
Post01 Mar 2009 14:37   

circular polarization help
CP is determine by the Axial Ratio (AR) of the wave that an antenna radiates.

In practise, if AR <3dB, means the wave is CP.
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lovhana



Joined: 05 Apr 2007
Posts: 20
Post01 Mar 2009 16:37   

Re: circular polarization help
thanx for replyin..instead of axial ratio plot..is there any ways to prove that the antenna radiates in circular polarization instead of linear or ellips..
thanx
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Post01 Mar 2009 16:37   

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Aya2002



Joined: 12 Dec 2006
Posts: 1409
Helped: 254
Location: Iraq
Post01 Mar 2009 18:18   

Re: circular polarization help
Hi friend,

see this tutorial it is very useful

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lovhana



Joined: 05 Apr 2007
Posts: 20
Post02 Mar 2009 2:33   

Re: circular polarization help
here i attached my results..hope someone explain my plot in term of circular polarization..how to read the plot..mny thanx

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abdoeng



Joined: 22 Feb 2004
Posts: 685
Helped: 14
Location: EGYPT
Post02 Mar 2009 19:45   

circular polarization help
in CST,try to get RHP,LHP,if there is ratio above 10 dB,then ur pattern is circular polarized
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