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  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Sat Sep 03, 2016 7:22 pm   Subject: 4nec2
Hi

One more question if i work with only one source ...what i need to do in 4nec2 that one L is connected in the middle of coaxial cable and other L is connected to gnd of cable .

Thanks
  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Sat Sep 03, 2016 6:16 pm   Subject: 4nec2
for build the antenna for me is not a problem ...i have cnc machine and laser machine i can do it with very high precision .For me the problem is 4NEC2 is new for me . I will try to make it with 1 sou ...
  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Sat Sep 03, 2016 3:19 pm   Subject: antenna
thank

But can you explain me ...i not understand good the sources how they works . this is a image of one crossed dipole ...
http://fpvlab.com/forums/attachment.php?attachmentid=7015&d=132969 ...
  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Sat Sep 03, 2016 12:44 am   Subject: axial ratio
can you help me why my axia ratio is very low also with crossed dipole

thanks

CM Crossed dipoles: 5800.0 MHz
CE
SY DEBUTD=0.02 'DEBUT DE DIPOLE
SY L=0.15 'LONGEUR DE BIPOLE
SY PL=0.0 ...
  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Thu Sep 01, 2016 3:18 pm   Subject: 4nec2
Hi

when you go in 3d plot also select magnitude , total gain plot

and above you can select axial ratio ....do you have the same results . Can you take screen shot of your axial plot thanks
  Topic: 4nec2 and axial ratio of circular antenna
sdow

Replies: 11
Views: 14973

PostForum: Questions Related to Antenna Theory   Posted: Wed Aug 31, 2016 7:45 pm   Subject: 4nec2 and axial ratio of circular antenna
hi
Actually i work on circular antenna 5.8ghz with 4nec2 software . But when i plot the 3d graphic the axial ratio is every time low ( 0.03) . I not no if the software can calculate axial ration fo ...
 
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