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Product Name :

RF Coupler

Item :

Product Description

Product name : RF Coupler

Item : LRC

Details :




Coupling Level





Operating Frequency







Insertion Loss

≤ 1.5dB

≤ 1.1dB

≤ 0.7dB

≤ 0.4dB


≤ 1.22

PIM (3rd Order)

≤ -150dBc (@2*43dBm)

Power Handling

≤ 500W

Connector Type

DIN Female


Indoor or Outdoor (IP66)



Operating Temperature





≤ 190g

An RF (radio frequency) coupler is a passive electronic device designed to enable the efficient transfer of radio frequency signals from one circuit or system to another while maintaining signal integrity and minimizing signal loss. RF couplers play a crucial role in various applications, including telecommunications, wireless communication systems, radar systems, and test and measurement equipment.

The primary function of an RF coupler is to split or combine RF signals with minimal loss and distortion. It achieves this by utilizing electromagnetic coupling techniques to direct a portion of the input signal to an output port, allowing for monitoring, analysis, or distribution of the signal while preserving the original signal path. RF couplers are available in various configurations, including directional couplers, hybrid couplers, and quadrature couplers, each tailored to specific signal distribution and monitoring requirements.

Directional couplers, for example, are commonly used to sample a portion of the input signal for monitoring or testing purposes while directing the majority of the signal to the output port. Hybrid couplers, on the other hand, are utilized to combine or divide signals in balanced or unbalanced configurations, making them suitable for power combining/dividing and phase/amplitude control applications. Quadrature couplers are designed to split an input signal into two output signals with a 90-degree phase difference, making them essential components in phase-sensitive systems such as vector modulators and demodulators.

RF couplers are characterized by their wide frequency range, low insertion loss, high directivity, and excellent impedance matching properties. These characteristics make them indispensable for maintaining signal quality and minimizing interference in RF transmission and reception systems. Moreover, RF couplers are engineered to withstand high power levels, making them suitable for high-power RF applications, such as broadcasting, satellite communications, and microwave systems.

In addition to their fundamental signal distribution and monitoring functions, RF couplers also play a crucial role in enabling accurate power measurements and signal analysis in RF systems. They are often integrated into power measurement instruments, network analyzers, and spectrum analyzers to facilitate precise power level detection, calibration, and troubleshooting.

In conclusion, RF couplers are essential components in RF systems, serving critical functions such as signal splitting, combining, monitoring, and power measurement. Their ability to preserve signal integrity, minimize losses, and facilitate accurate signal analysis makes them indispensable in a wide range of applications, from telecommunications infrastructure to advanced radar and wireless communication systems. As technology continues to advance, the demand for high-performance RF couplers that can operate across increasingly broad frequency ranges and power levels is expected to grow, further underscoring their significance in modern RF engineering and communications.


Product Description