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Measurements on chokes with DC bias
Here below are a few measurements on inductors subjected to a DC current flow. Main purpose is to find out whether they are suitable as bias chokes, e.g. remotely powered amplifiers or PIN diode circuits.
The circuit used for the measurements is shown in the picture below: two identical inductors are connected so as to be in series for the DC bias current and in parallel for the RF signal.
The graphs below show the measurements results referred to a single inductor.
Neosid 29 8267 36 - SM-NE45 (1812)
0.1 mH, 0.18 A, 4 Ω
Fastron 1616FPS-101M-01
0.1 mH, 0.42 A, 1.596 Ω
