IE3D: S11 parameters and Conjugate Matching
时间：04-06
整理：3721RD
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Hi,
I am designing a dipole antenna with differential ports, and my main goal is to check the power transfer efficiency from the driving circuit onto the antenna. To do that I am looking at S11(dB) at resonance, and hoping to find a low value (say, lower than -10). The problem is that I haven't found a good way to 'conjugate match' the antenna yet.
One method I've tried was to attempt to minimize the S11(dB) value at the desired resonance frequency, by modifying the Z (source impedance) and Zc (characteristic impedance of the transmission line connecting to the antenna) of the wave source under the menu "Excitation and Termination." As a result all of my Zre, Zim and S11(dB) curves turn out to be identical.
Are the variables I tweaked simply not the right ones to modify, or does IE3D ignore all non-50-Ohm source impedance values?
Also, is looking at S11(dB) a suggested way of determining the power transfer? Any other ways?
Thank you.
I am designing a dipole antenna with differential ports, and my main goal is to check the power transfer efficiency from the driving circuit onto the antenna. To do that I am looking at S11(dB) at resonance, and hoping to find a low value (say, lower than -10). The problem is that I haven't found a good way to 'conjugate match' the antenna yet.
One method I've tried was to attempt to minimize the S11(dB) value at the desired resonance frequency, by modifying the Z (source impedance) and Zc (characteristic impedance of the transmission line connecting to the antenna) of the wave source under the menu "Excitation and Termination." As a result all of my Zre, Zim and S11(dB) curves turn out to be identical.
Are the variables I tweaked simply not the right ones to modify, or does IE3D ignore all non-50-Ohm source impedance values?
Also, is looking at S11(dB) a suggested way of determining the power transfer? Any other ways?
Thank you.