Zin
f = 930 MHz
Zo = 5 Ω
ZOL*
f = 930 MHz
f = 960 MHz
f = 960 MHz
VDD = 26 V, IDQ = 250 mA, Pout = 30 W PEP
f
Zin
MHz
Ω
ZOL*
Ω
930
1.34 – j0.1
3.175 + j0.09
945
1.36 – j0.2
3.1 + j0.08
960
1.4 – j0.14
3.0 + j0.05
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 9. Series Equivalent Input and Output Impedance
MOTOROLA RF DEVICE DATA
MRF9030R1 MRF9030SR1
7