10890-3

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RF Directional Couplers are electronic components that are used to achieve transmission of signals between two locations. A directional coupler consists of two branches – one signal branch for communication and the other for acoustic or radio-frequency coupling. The RF directional coupler utilizes the theory of transformer for the coupling of signals.

The model 10890-3 RF directional coupler is primarily used for precise radio signal level measurements in applications such as satellite downlink systems, mobile radio base stations, RADARs, broadcast; and aircraft radios. The insertion loss of the model 10890-3 can be found to within 1.5 dB for frequencies ranging from 0.2 to 3.8 GHz, while the coupling level can be set between 5 and 30 dB.

To ensure accuracy of operation, RF directional couplers should be manufactured to very tight tolerances, which is exactly what model 10890-3 RF directional coupler does. Its RF through ports offer a remarkable low insertion loss with excellent directivity. It also offers superior VSWR of under 1.30:1. In addition, the 10890-3 contains connectors with a unique design that provides superior performance and reliable service for the user.

The design of the model 10890-3 ensures that radiation losses between transmitting antennas and the RF directional coupler are at a minimum. This design also ensures that adjacent losses caused by other nearby sources are minimized. That being said, RF directional couplers are perfect for situations in which radiation losses need to be contained within the system.

The functional working principle of the model 10890-3 RF directional coupler is to receive signals from a transmitter, split them into two branches, and then combine them again at the output. One branch is used for sensing, while other branch causes the electrical power coming from the transmitter to be attenuated at the load. The signal is then re-combined and transferred to the receiver.

The ability of model 10890-3 RF directional coupler to precisely regulate output signal level means that these couplers are also used in signal isolators, antenna switches, power splitters, and noise figure measurements systems. It also supports system accuracy when signals are loaded with various conditions.

Overall, the model 10890-3 RF directional coupler offers superior performance and reliable service to the user. Its ability to precisely control RF signal level makes it an ideal choice for applications such as satellite downlink systems, mobile radio base stations, RADARs, broadcast; and aircraft radios.

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