hari_preetha
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As we know Figure of Merit (FOM) can be calculated using following expression
FOM= Gain(dB) × Band Width (in GHz)/ [NF(dB) - 1] × Pdc(in mW)
From the above expression, we can easily calculate FOM, when NF greater than one and express it.
But my question is, when Noise Figure (NF) is less than 1, denominator term becomes negative. Suppose NF= 0.5 dB, in the denominator [NF(dB) -1]= -0.5, then we have to divide the positive numerator with negative denominator. Finally result will become negative (-) figure of merit.
Can we express Figure of Merit (FOM) in terms of Negative Values, even though the Noise figure is less than 1.
Can you clarify my doubt.
FOM= Gain(dB) × Band Width (in GHz)/ [NF(dB) - 1] × Pdc(in mW)
From the above expression, we can easily calculate FOM, when NF greater than one and express it.
But my question is, when Noise Figure (NF) is less than 1, denominator term becomes negative. Suppose NF= 0.5 dB, in the denominator [NF(dB) -1]= -0.5, then we have to divide the positive numerator with negative denominator. Finally result will become negative (-) figure of merit.
Can we express Figure of Merit (FOM) in terms of Negative Values, even though the Noise figure is less than 1.
Can you clarify my doubt.