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Plot Farfield on an XY rectangular plot
Posted 2018年8月21日 GMT-4 15:17 Ray Optics, RF & Microwave Engineering Version 5.3a 1 Reply
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x-axis: Theta y-axis: Gain [dBi] cut: phi=0
How can I do this? Soooo frustrated?
-------------------Tuli
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Yes, there is a simple way to do this. It works a little like a polar plot (in regard to choosing a normal to the plane, and a reference direction), once you do the initial set up. Here is how you do it Cartesian-style: 1. In the Model Builder, right-click Results, and choose "1D Plot Group." 2. Right-click on the "1D Plot Group " and choose "More Plots..." and then "Far Field" 3. In the Settings Column, click on the expansion arrow for "Evaluation." There, you can choose number of angles and the direction of the normal to the planar cut (e.g., for an XY plane, put a 1 in the z: box and zeros in the others.) But for a ZX plane (which I think is what you want), put a 1 in the y: box and zeros in the others. You can choose a reference vector direction (in 3-space) too, which will correspond to the angle=0 in the plot. I suggest you choose a reference direction perpendicular to your normal vector. 4. Note: If you want to plot Gain in dBi, be sure to modify the expression to be plotted from Comsol's default setting. I usually prefer to plot emw.rGaindBEfar.
Enjoy!
-------------------Scientific Applications & Research Associates (SARA) Inc.
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