Directional Coupler -5dB

The Directional Coupler -5dB is a crucial component for precise distribution and attenuation of radio frequency signals in various telecommunications systems. It is designed to tap off a portion of the input power with minimal loss to the main signal, making it indispensable for building cellular signal booster systems, Distributed Antenna Systems (DAS), and other infrastructures.

The main principle of operation of this coupler involves splitting the input signal into two channels: the main output channel, where the power remains virtually unchanged (Pout ≈ Pin), and the coupled channel, where a portion of the power is diverted with a specified attenuation. In this model, the attenuation is -5dB (Ptap = Pin - 5dB), allowing for precise adjustment of the signal level for connecting additional equipment or creating test points. The device operates effectively across a wide frequency range from 800 to 2700 MHz, covering all major cellular bands (2G/3G/4G LTE) as well as Wi-Fi.

This directional coupler is ideal for engineers, installers of mobile communication enhancement systems, and system integrators who need to ensure stable and controlled signal distribution. It is frequently used for connecting additional amplifiers, monitoring equipment, or for creating zones with different signal levels within a single facility. Excellent technical specifications, such as a Voltage Standing Wave Ratio (VSWR) of no worse than 1.5, low insertion loss (< 2.1 dB), and high isolation between outputs (20 dB), guarantee minimal distortion and efficient signal transmission.

The reliability of the device is confirmed by its ability to handle a maximum input power of up to 50 W and a wide operating temperature range from -40 to +40 °C. Its compact and durable housing, along with convenient mounting, allows for easy integration of the coupler into any infrastructure. The N-female connector type ensures a reliable and standardized connection to 50 Ohm coaxial cables. These characteristics make the -5dB directional coupler an excellent choice for those seeking a high-quality and long-lasting solution for managing RF signals. Buy a directional coupler -5dB now to optimize your signal booster system or build an efficient DAS.

🎁 Expert Advice When installing the directional coupler, ensure correct selection of the "Input," "Output," and "Coupled" ports according to the marking on the housing to ensure proper signal distribution and avoid unwanted losses or equipment damage.

💡 FAQ

❓ What is a directional coupler and what is it used for?
A directional coupler is a device that splits an incoming RF signal into two channels: a main channel (with minimal loss) and a coupled channel (with a specified attenuation). It is used for signal distribution, monitoring, or connecting additional equipment.

❓ What does "-5dB" mean in the Directional Coupler -5dB name?
This indicates the coupling factor, which is how many decibels the signal diverted to the coupled port is attenuated relative to the input signal. In this case, the coupled port will receive a signal with 5dB less power than the input.

❓ What frequency range does this coupler support?
This model operates in a wide frequency range from 800 to 2700 MHz, making it compatible with most cellular communication standards (2G, 3G, 4G LTE) and Wi-Fi.

❓ Can this coupler be used outdoors?
Thanks to its wide operating temperature range from -40 to +40 °C and durable casing, the directional coupler can be used in various conditions. However, for outdoor installation, additional protection from direct precipitation and aggressive environments is recommended.

❓ What types of connectors are used in this device?
The directional coupler is equipped with N-female connectors, which provide a reliable connection to coaxial cables.