MRF187 Datasheet, PDF (5/8 Pages) Motorola, Inc – RF POWER FIELD EFFECT TRANSISTORS

f = 865 MHz
Z_in
895 MHz
f = 865 MHz
Z_OL* _{895 MHz}
Z_o = 10 Ω
V_CC = 26 V, I_DQ = 550 mA, P_out = 85 W PEP
f
Z_in
MHz
Ω
Z_OL*
Ω
865
1.04 + j1.51
1.13 – j0.091
880
1.03 + j1.39
1.20 – j0.176
895
1.03 + j1.29
1.28 – j0.242
Z_in = Complex conjugate of source impedance.
Z_OL* = Complex conjugate of the optimum load
impedance at a given output power, voltage,
IMD, bias current and frequency.
Note: Z_OL* was chosen based on tradeoffs between gain, output
power, drain efficiency and intermodulation distortion.
Figure 7. Series Equivalent Input and Output Impedance
MOTOROLA RF DEVICE DATA
MRF187 MRF187R3 MRF187SR3
5