Zin
f = 930 MHz
f = 960 MHz
Zo = 5 Ω
ZOL* f = 930 MHz
f = 960 MHz
VDD = 26 V, IDQ = 250 mA, Pout = 30 Watts (PEP)
f
Zin
MHz
Ω
ZOL*
Ω
930
1.0 + j0.18
3.05 + j0.09
945
1.0 + j0.10
3.00 + j0.07
960
1.0 + j0.03
2.95 + j0.03
Zin = Complex conjugate of source impedance.
ZOL* = Complex conjugate of the optimum load
impedance at a given output power, voltage,
IMD, bias current and frequency.
Note: ZOL* was chosen based on tradeoffs between gain, output
power, drain efficiency and intermodulation distortion.
Input
Matching
Network
Device
Under Test
Output
Matching
Network
Z in
Z OL*
Figure 11. Series Equivalent Input and Output Impedance (MRF9030MBR1)
MRF9030MR1 MRF9030MBR1
8
MOTOROLA RF DEVICE DATA