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GAIN COMPRESSION MEASUREMENTS
8-40 37xxxE OM
Gain Compression Power Configuration
Amplifier Specifications:
Frequency Range: 8 to 12 GHz
Gain 25 dB nominal
1 dB Gain Compres
-
sion (GC)
12 dBm minimum
Gain Compression Formula: P = 12 – 25 – 15 = –28 dBm
37369E Setup
Default Power: –7 dBm
Power Control: –8 dB
Port 1 Attenuator: 0 dB
External Port 1 Attenuator: 10 dB
The above setting result in
Port 1 Power: –25 dBm
Maximum Amplifier Output @15 dBm
Coupler Loss: @13 dB
Port 2 Attenuator: 10 dB
Figure 8-28. Gain Compression Measurement Plan (Example)
Output
Power
Input Power
Phase
Input Power
Input
Power
Time
Pstart
Pstop
Figure 8-29. Power In (Pi) versus Power Out (Po) Graphical Example