Directional Coupler
Typical Performance Curves
DBTC-9-4-75+
Coupling Loss vs. TEMPERATURE
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
9.6
9.8
10.0
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Coupling Loss (dB.)
@ -40°C
@ +25°C
@ +85°C
Insertion Loss vs. TEMPERATURE
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Insertion Loss (dB)
@ -40°C
@ +25°C
@ +85°C
Directivity vs. TEMPERATURE
0
5
10
15
20
25
30
35
40
45
50
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Directivity (dB.)
@ -40°C
@ +25°C
@ +85°C
Insertion Loss
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Insertion Loss (dB)
REV. X1
DBTC-9-4-75+
081130
Page 1 of 2
Directional Coupler
Typical Performance Curves
DBTC-9-4-75+
Return Loss
0
5
10
15
20
25
30
35
40
45
50
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Return Loss (dB)
Return Loss In
Return Loss Out
Return Loss Cpl
Return Loss In vs. TEMPERATURE
2
4
6
8
10
12
14
16
18
20
22
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Return Loss (dB)
@ -40°C
@ +25°C
@ +85°C
Return Loss Out vs. TEMPERATURE
0
5
10
15
20
25
30
35
40
45
50
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Return Loss (dB)
@ -40°C
@ +25°C
@ +85°C
2
4
6
8
10
12
14
16
18
20
22
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Frequency (MHz)
Return Loss (dB)
@ -40°C
@ +25°C
@ +85°C
REV. X1
DBTC-9-4-75+
081130
Page 2 of 2