RF Couplers

Over 475 low-cost models to choose from with power handling from 0.5 to 250W, covering 5 kHz to 18 GHz! Directional/bi-directional/DC pass-through models
Surface mount and coaxial
Wideband core-and-wire and LTCC models as small as 0.12 x 0.06″
50 and 75Ω
Mini-Circuits directional and bi-directional RF couplers are designed for a wide range of commercial, industrial, and military applications. Our low-cost surface mount models include LTCC designs as small as 1206 with low insertion loss and high directivity, while high-power surface mount designs offer power handling up to 100W. Our extensive selection of coaxial connectorized couplers includes models with power handling up to 250W and a variety of packages featuring SMA, BNC, Type N, and TNC connectors. All units are manufactured to ensure statistical control of performance parameters such as insertion loss, coupling, and input/output return loss, ensuring outstanding unit-to-unit repeatability. With wideband coverage from 5 kHz up to 18 GHz, these RF couplers provide coupling ratios from 6 to 40 dB, DC passing and DC blocking to meet a broad range of system requirements.

New Couplers

Surface Mount
Directional Coupler
• Wideband, 5 to 2250 MHz
• Flat coupling, ±0.8 dB
• RF power handling up to 1W

Coaxial Bi-Directional Coupler
• Wideband, 700 to 6000 MHz
• High power handling, up to 75W
• Low mainline loss, 0.55 dB
• High directivity, 25 dB

DC Pass, High Power
Bi-Directional Coupler
• 225 to 450 MHz
• High power handling, up to 200W
• High directivity, 28 dB
• Low insertion loss, 0.15 dB

Surface Mount
Directional Coupler
• 100 to 1300 MHz
• Useable to 1500 MHz
• Low mainline loss, 0.4 dB
• High directivity, 22 dB
• High-Power, 4W

Contact us

ZHDC-10-63-NS+

High Directivity
Directional Coupler
• Wideband, 50 to 6000 MHz
• 10 dB Coupling
• High directivity, up to 33 dB
• Excellent coupling flatness
• SMA / N-Type connectors

ZGBDC20-33HPD+

High Power Bi-Directional Coupler
• Wide frequency range, 300-3000 MHz
• High directivity, 20 dB typ.
• Good VSWR, 1.22:1 typ.
• High power, up to 250W
• DC current pass through input to output
• IP67 weather proof case

ZADC-13-73+

DC Pass Directional Coupler
• 2600 to 7000 MHz
• Excellent directivity, 18 dB typ.
• Excellent VSWR, 1.20 typ.
• Power input up to 4W
• Low cost

SYDC-19-52VHP+

High Power Bi-Directional Coupler
• Wide frequency range, 300-3000 MHz
• High directivity, 20 dB typ.
• Good VSWR, 1.22:1 typ.
• High power, up to 250W
• DC current pass through input to output
• IP67 weather proof case