robismyname
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Wideband Bias Tee
Gary W. Johnson, WB9JPS 11-8-08
Bias tees are useful for injecting DC bias to a device under test while isolating an
instrument from any DC offset. For instance, you may be applying a bias to the base of a
transistor while using a network analyzer to measure S parameters. Or, when testing a
modulated laser diode, a DC operating current is required while an ac modulation rides
on top of that.
So is this saying if I have a LNA i am testing that I need to DC bias my RF signal input signal to obtain accurate measurement on the RF output? Just trying to gather myself on the purpose of using a biased T circuit
Gary W. Johnson, WB9JPS 11-8-08
Bias tees are useful for injecting DC bias to a device under test while isolating an
instrument from any DC offset. For instance, you may be applying a bias to the base of a
transistor while using a network analyzer to measure S parameters. Or, when testing a
modulated laser diode, a DC operating current is required while an ac modulation rides
on top of that.
So is this saying if I have a LNA i am testing that I need to DC bias my RF signal input signal to obtain accurate measurement on the RF output? Just trying to gather myself on the purpose of using a biased T circuit