Lifetime Connectivity

CDS30-43-694/3800
30dB Directional Coupler

Rev : B | Rev date : 15 Nov 2025

RFS CDS*-43 series Directional Coupler have been designed for a variety of wireless applications in the frequency band from 694 to 3800MHz. The unit couples off a defined fraction of a RF signal from 5 to 30 dB with minimal reflections or loss. The broad frequency range is ideally suited for multi-band distributed antenna systems or in combination with RADIAFLEX® radiating cables.

Features / Benefits

  • 4.3-10-female interfaces
  • PIM optimized design (160dBc @2x43dBm)
  • Low insertion loss
  • High power handling
  • Small size, Low weight
cdsx-43-698-2700-01_directionalcoupler_res2.png
Structure
Product Type Directional Coupler
Number of Input Ports 1
Number of Output Ports 2
Connector Type 4.3-10 female
Electrical Specifications
lower frequency upper frequency
694 3800
Impedance 50 Ω
Insertion Loss max. 0.2 dB
Max. VSWR / Return Loss 1.3 (17.7)
Intermodulation (IM3) -160dBc (2x43dBm)
Coupling Value 30 dB
Total Input Power 400 W
Temperature Specifications
Temperature Range -25°C to 65°C (-13°F to 149°F)
Mechanical Specifications
Height 28.4mm (1.12in)
Width 69.2mm (2.72in)
Length 174.8mm (6.88in)
Testing and Environmental
Environmental Class IP65

External Document Links

Notes