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Post subject: printed yagi array in HFSS
Posted: Mon Dec 05, 2005 4:52 pm
I am trying to simulate a printed Yagi array (i.e., multiple Yagi antennas on a common
substrate) using HFSS v9.2. I want to study the mutual coupling effects and the radiation pattern.
I am not sure I can use the array synthesis tool because, in my structure, the Yagis are not
oriented in the same direction. I tried specifying 1 port for each Yagi and thought of looking for
the S21 parameter. But I get a value of -280dB, irrespective of the spacing (even when 2 Yagis
overlap!!). Also, when I look at the radiation pattern, I get the pattern of a single antenna
only, even when there are 2 Yagi's. The pattern that I obtain is that of the antenna for which I
defined Port 1. The pattern of the other antenna (with port 2) doesnt seem to be calculated!!
Can any one help me with this??