How to explain L drop in sub-zero-GHz freqency?
时间：04-10
整理：3721RD
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I observed many cases in papers, in our RF measurement and also in full-wave simulation that the "inductance vs freqeuncy" usually drops in sub-zero-GHz range, i.e. several mega hertz range
For our case with a micromachined 3D solenoid inductor, the drop is quite obvious. And I guess similar drop occurs in planar spiral or symmetrical indutors.
The inductance is extracted using expression:
-1/(2*pi*freq*imag(Y11)))
How to explain this phemonenon?
I guess measurement errors in sub-zero-GHz might has some effect. But how about the results from full wave simulation as in HFSS?
Other research findings indicate that internal inductance of a conductor drops with increase in frequency.
Or the method of extraction will introduce some effect.
Anyone can help me with that?
For our case with a micromachined 3D solenoid inductor, the drop is quite obvious. And I guess similar drop occurs in planar spiral or symmetrical indutors.
The inductance is extracted using expression:
-1/(2*pi*freq*imag(Y11)))
How to explain this phemonenon?
I guess measurement errors in sub-zero-GHz might has some effect. But how about the results from full wave simulation as in HFSS?
Other research findings indicate that internal inductance of a conductor drops with increase in frequency.
Or the method of extraction will introduce some effect.
Anyone can help me with that?