X3C19P1-05S Datasheet, PDF (3/22 Pages) Anaren Microwave – 5dB Directional Coupler

Insertion Loss and Power Derating Curves
-0.04
-0.05
-0.06
Typical Insertion Loss Derating Curve for X3C19P1-05
typical insertion loss (f=1880Mhz)
typical insertion loss (f=1990Mhz)
typical insertion loss (f=2000Mhz)
-0.07
-0.08
-0.09
-0.1
-0.11
-0.12
-100
-50
0
50
100
150
200
Temperature of the Part (^oC)
140
120
100
80
70
60
40
20
0
0
Model X3C19P1-05S
Rev B
X3C19P1-05 Power Derating Curve
1700 - 2000Mhz
95
50
100
150
200
Mounting Interface Temperature (^oC)
Insertion Loss Derating:
The insertion loss, at a given frequency, of a group of
couplers is measured at 25°C and then averaged.
The measurements are performed under small signal
conditions (i.e. using a Vector Network Analyzer).
The process is repeated at 85°C and 150°C. A best-
fit line for the measured data is computed and then
plotted from -55°C to 150°C.
Power Derating:
The power handling and corresponding power derating
plots are a function of the thermal resistance, mounting
surface temperature (base plate temperature), maximum
continuous operating temperature of the coupler, and the
thermal insertion loss. The thermal insertion loss is
defined in the Power Handling section of the data sheet.
As the mounting interface temperature approaches the
maximum continuous operating temperature, the power
handling decreases to zero.
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