Directional Couplers
 
 

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Directional Couplers
Directional Couplers
These directional couplers have three series; The DCN and the DCB series adopt transformer type and the BSC series adopts Wilkinson micro-stripline type.
They can branch a certain level of signal with extremely low transmission loss in a trunk line over broad band range.
They are suitable for a unit used in cable transmission line and incorporated units in various equipment.
Common specifications
Isolation(Branch) DCN, DCB Type : 20dB Min.
BSC Type : 35dB Min.
Max. input power DCN, DCB Type : 2W Max.
BSC Type : 1W Max.
Operating temp. 0XC to +50XC
Specifications
Model Frequ-
ency
Range
(MHz)
Imped-
ance ([)
Insertion
Loss (dB)
V.S.W.R.
(Max.)
Coupling
(dB)
Connec-
tions
Main Branch
DCN 2502 40 to 250 50 1.5 IN=1.3
OUT=1.4
1.5 112 N-J
DCN 2502C 75 NC-J
DCN 9002 40 to 900 50 2.5 1.5 132 N-J
DCN 9002C 75 NC-J
DCN 2504 40 to 250 50 2.0 IN=1.3
OUT=1.5
142 N-J
DCN 2504C 75 NC-J
DCN 9004 40 to 900 50 3.0 1.5 162 N-J
DCN 9004C 75 NC-J
DCB 2502 40 to 250 50 1.5 IN=1.3
OUT=1.4
112 BNC-J
DCB 2502C 75
DCB 9002 40 to 900 50 2.5 1.5 132
DCB 9002C 75
DCB 2504 40 to 250 50 2.0 IN=1.3
OUT=1.5
142
DCB 2504C 75
DCB 9004 40 to 900 50 3.0 1.5 162
DCB 9004C 75
BSC 1802 900 to 1,800 50 1.5 1.3 1.3 112 N-J