High-Performance RF Directional Couplers for EW, Radar & Satcom
As a premier RF components supplier, RFComp offers high-performance directional couplers designed for accurate signal sampling and power measurement without disrupting the main transmission line. These precision RF products are essential for high frequency RF systems, satellite communications RF parts, and military RF components. Engineered for frequencies from DC to 110 GHz, our couplers provide the high directivity and low insertion loss required for mission-critical aerospace and defense applications.
Directional Coupler
| Model Number | Description | Frequency Range | Insertion Loss | VSWR | Dimenions | |
| HD34416 | Directional Coupler | 8000-12000 | 0.7 | 1.4:1 | 2.26 x 0.96 x 0.1 | Download |
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Custom Directional Coupler Engineering
Modifications & Mission-Critical Power Sensing
Precision Engineering & Modifications
We specialize in custom RF solutions for unique coupling values or multi-port configurations. Our RF component engineering team can customize the housing to meet tight SWaP (Size, Weight, and Power) constraints.
Extreme Environment Resilience
Our couplers are designed as high reliability RF parts, tested to maintain coupling accuracy in the high-vibration and thermal-shock environments typical of aerospace and UAV flight.
Broadband Performance
We offer ultra-wideband designs that cover multiple octaves, ideal for versatile lab RF test components and multi-band 5G systems.
Choosing the Right Directional Coupler
Critical Factors for Accurate Signal Sampling
Selecting the correct coupler is vital for your RF system integration services. Our RF & microwave product expert team recommends focusing on these coupling parameters:
Coupling Factor (dB): We offer standard values (6dB, 10dB, 20dB, 30dB) to ensure you sample the exact amount of power needed for your RF diode detectors or feedback loops.
Directivity & Isolation: High directivity is crucial for distinguishing between forward and reflected power, a key requirement for SWR monitoring in high power RF amplifiers.
Insertion Loss: Our high performance RF components are designed to minimize “main-line” loss, preserving the maximum signal strength for your antenna or transmitter.
Power Handling: Available in various power ratings to match the output of your high power RF amplifiers or medium power RF amplifiers without thermal degradation.
Technical FAQ
What is the difference between a Directional Coupler and a Dual Directional Coupler?
A standard directional coupler samples power in one direction (usually forward). A dual directional coupler has two coupled ports, allowing for simultaneous measurement of both forward and reflected power, which is essential for real-time VSWR monitoring in EW systems.
Can these be used with high-power transmitters?
Yes. Our high performance directional couplers are built to handle high CW and peak power levels. They are frequently used as the primary sampling point for military RF components and satellite communications.
How does frequency affect the coupling factor?
Most couplers have a specific “frequency flatness” rating. Our precision RF products maintain a very flat coupling response across their entire rated frequency range of RF parts, ensuring measurement accuracy.
What Our Customers Say
“The directivity on RFComp’s 20dB couplers is the best we’ve seen. They have significantly improved the accuracy of our high-power amplifier protection circuits.”
Lead RF Architect
Global Aerospace Prime
“We needed a custom-form-factor coupler for a satellite communications project. RFComp’s New York engineering team delivered a ruggedized solution that met every spec.”
Senior Test Engineer
Semiconductor Testing Services
“For our lab RF test components, repeatability is vital. RFComp’s directional couplers provide consistent sampling across the entire mmWave band.”
Director of Operations
Telecommunications Infrastructure Co.
Experience the RFComp Difference
Whether you need a single directional coupler for a lab test bench or 1,000 units for a tactical radar rollout, RFComp is ready to support your mission. Our New York-based engineering team specializes in high-performance RF and microwave solutions that meet the exact demands of your 2026 project schedule.
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