S21 Parameter vs. Collector Current
20
VCE = 2 V
f = 2 GHz
16
12
8
4
0
12
5 10 20 50 100
Collector Current IC (mA)
2SC5820
3rd. Order Intercept Point (IP3)
20
f = 1.8 GHz
VCE = 2 V
Fundamental
0 Ic = 5 mA
-20
3rd. Harmonic
-40
-60
-80
-60 -40 -20
0
20
Input Power PIN (dBm)
Noise Figure vs. Collector Current
5
f = 1.8 GHz
4
3
2
VVCCEE
=
=
1
3
V
V
VCE = 2 V
1
0
12
5 10 20 50 100
Collector Current IC (mA)
Power Gain vs. Collector Current
20
f = 1.8 GHz
VCE = 3 V
16
VCE = 2 V
12
VCE = 1 V
8
4
0
12
5 10 20 50 100
Collector Current IC (mA)
Rev.1, Nov. 2002, page 5 of 12