MRF18090B Datasheet, PDF (6/8 Pages) Motorola, Inc – RF POWER FIELD EFFECT TRANSISTORS

f = 1805 MHz
Z_in
f = 1990 MHz
f = 1990 MHz
f = 1805 MHz
Z_OL*
Z_o = 10 Ω
V_DD = 26 V, I_DQ = 750 mA, P_out = 90 Watts (CW)
f
Z_in
MHz
Ω
Z_OL*
Ω
1805
1.10 + j5.85
1.15 + j2.16
1880
1.56 + j6.75
1.13 + j2.60
1930
2.05 + j8.00
1.30 + j2.23
1990
2.30 + j7.30
0.82 + j2.90
Z_in = Complex conjugate of the source impedance.
Z_OL* = Complex conjugate of the optimum load at a
given voltage, P1dB, gain, efficiency, bias
current and frequency.
Note: Z_OL* was chosen based on tradeoffs between gain,
output power, and drain efficiency.
Input
Matching
Network
Device
Under Test
Output
Matching
Network
Z _in
Z _OL*
Figure 10. Large Signal Input and Output Impedance
MRF18090B MRF18090BS
6
MOTOROLA RF DEVICE DATA