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Engineering Notes


POWER RF AMPLIFIERS TECHNICAL REFERENCE MATERIAL



RF Power


Normally expressed in watts or dBm (decibels over/below 1 milliwatt)

Frequently Used Powerlevel Conversions
Level
(watts)
Level
(conventional)
Level
(dBm)
Level
(dBw)
1 x 10-12
1 x 10-9
1 x 10-6
1 x 10-3
0.1
1
10
100
1000
1 picowatt 
1 nanowatt 
1 microwatt 
1 milliwatt 
0.1 watts
1 watt
10 watts
100 watts
1 kilowatt
-90 
-60 
-30 
0 
+20
+30
+40
+50
+60
-120 
-90 
-60 
-30 
-10
0
+10
+20
+30

Watts to dBm Conversion Calculator

Enter Output Power in Watts:

   

Output Power in dBm =

dBm to Watts Conversion Calculator

Enter Output Power in dBm:

   

Output Power in Watts =

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Using CCDF as a Method
of Measuring P1dB and P3dB


RF Glossary of Terms

Watts to dBm and dBm to Watts
Conversion Calculator


RF Amplifiers Gain
Passband Frequency Range Gain Flatness
RF Power
Pulsed Power
Peak Envelope Power
Harmonics & Spurious
Intercept Point
Intermodulation Distortion
Multitone IMD Monograph
Noise Figure & Level
Modulation Types
VSWR & Return Loss (Impedance)
Load VSWR & Protection
Leveling Loops, Input Overdrive Protection
Graceful Degradation
Protection Circuits
DC Input Power & Efficiency
Cooling Methods
Class of RF Amplifiers
Class A Operation
Class AB Operation
Class C operation

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