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ok..
for example, i'm using:
dielectric constant = 2.2
substrate's height = 1.575
thus, how can I calculate the length of L1,L2 and L3?
for you information, symmetry that have been mentioned by me is L1 = L2 (refer new figure). is it possible to have situation like this?
Hi sv1437,
thanks for your explanation. what do you mean by L2+L1+L2 introduces 180 phase shift? i'm still not really understand. do you know any related equation to calculate the length of the arms? one more thing, is it possible to have symmetry arm (same length)?
I have saw many papers regarding to design the quasi-Yagi antenna. please refer figure below, is it BALUN in the red circle? if yes, why the BALUN is not symmetrical? I means, the length of right arm is not equal to left arm.
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