Directional Coupler
Typical Performance Curves
DBTC-9-4+
Coupling Loss vs. TEMPERATURE
7.4
7.6
7.8
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Coupling Loss (dB.)
@ -40°C
@ +25°C
@ +85°C
Insertion Loss vs. TEMPERATURE
0
2
4
6
8
10
12
14
16
18
20
0 500 1000 1500 2000 2500 3000 3500
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
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Directivity (dB.)
@ -40°C
@ +25°C
@ +85°C
Insertion Loss
0
2
4
6
8
10
12
14
16
18
20
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Insertion Loss (dB)
REV. X1
DBTC-9-4+
081110
Page 1 of 2
Directional Coupler
Typical Performance Curves
DBTC-9-4+
Return Loss
0
5
10
15
20
25
30
35
40
45
50
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Return Loss (dB)
Return Loss In
Return Loss Out
Return Loss Cpl
Return Loss In vs. TEMPERATURE
4
6
8
10
12
14
16
18
20
22
24
0 500 1000 1500 2000 2500 3000 3500
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
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Return Loss (dB)
@ -40°C
@ +25°C
@ +85°C
4
6
8
10
12
14
16
18
20
22
24
0 500 1000 1500 2000 2500 3000 3500
Frequency (MHz)
Return Loss (dB)
@ -40°C
@ +25°C
@ +85°C
REV. X1
DBTC-9-4+
081110
Page 2 of 2