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9
8.5
NF without Noise Cancellation
NF with Noise Cancellation
8
7.5
7
6.5
6
5.5
5
4.09 dB
4.5
4
3.5
3
3.16 dB
2.5
2
3 .54 .55 .56 .57 .58 .59 .5 0 .5
Frequency (GHz)
Fig. 7. Simulated noise figure plots for UWB LNA with and without noise cancellation
30
27
24
21
18
15
12
9
S21 without noise cancellation
6
3
S21 with noise cancellation
0
.52 .53 .54 .55 .56 .57 .58 .59 .5 0 .5
Frequency (GHz)
Fig. 8. Simulated power gain plots for UWB LNA with and without noise cancellation
5.4
5.2
NF Simulation
NF Theory
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.3 dB
3.4
3.2
3
2
2.5
3
3.5
4
4.5
5
5.5
6
Frequency (GHz)
Fig. 9. Simulated and theoretical noise figure plots for UWB LNA with noise cancellation
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