Sep 20, 2014 #1 F farzad1373 Newbie level 3 Joined Sep 11, 2014 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 21 Hi every one. i am trying to draw a log-spiral antenna in HFSS. How can i draw it? Regards
Sep 23, 2014 #2 T teddycruger Newbie level 1 Joined Feb 7, 2013 Messages 1 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,285 I did this a while ago, but I used a number of closed equation based curves. The formula is given by (see Wikipedia: Logarithmic spiral): x(t) = a exp(bt) cos(t) y(t) = a exp(bt) sin(t) Was a bit of a pain to accomplish.
I did this a while ago, but I used a number of closed equation based curves. The formula is given by (see Wikipedia: Logarithmic spiral): x(t) = a exp(bt) cos(t) y(t) = a exp(bt) sin(t) Was a bit of a pain to accomplish.
Sep 25, 2014 #3 M microwave_1960 Member level 1 Joined May 20, 2006 Messages 33 Helped 8 Reputation 16 Reaction score 4 Trophy points 1,288 Location Poland Activity points 1,473 You can try Ansoft Antenna Design Kit