Output Admittance vs. Frequency
6
5
IC = 1 mA 2 4
4
3
8
12
250
200
2
100
1
50
yoe = goe+jboe
VCE = 9 V
f = 25 MHz
0
0.2 0.4 0.6 0.8 1.0 1.2
Output Conductance goe (mS)
Forward Transfer Admittance vs.
Frequency
20
IC = 1 mA
yfe = gfe+jbfe
0
2
VCE = 9 V
–20
4
–40
–60
–80
f
25
=
MHz
200
150
–100
100 80 50
8
12
25
–120
0 20 40 60 80 100 120 140
Forward Transfer Conductance gfe (mS)
2SC1906
0
–0.4
Reverse Transfer Admittance vs.
Frequency
yre = gre+jbre
VCE = 9 V
f = 25 MHz
50
100
–0.8
200
–1.2 250
IC = 21 mA 8
–1.6
4 21
–2.0
–0.10 –0.08 –0.06 –0.04 –0.02 0
Reverse Transfer Conductance gre (mS)
Conversion Gain vs. Local Oscillating
Injection Voltage
17
16
15
VCB = 9 V
14
IE = 3.5 mA
fs = 200 MHz
13
fosc = 245 MHz
fIF = 45 MHz
12
Emitter Inject
11
10
0
0.1
0.2
0.3
Injection Voltage Vinj (V)
5