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20 db directional coupler

Depending on the specifics of your situation, a 20dB Directional Coupler can be the perfect solution for you. This kind of tool is available in a wide variety of different configurations, and its use is suitable for a wide range of different purposes.


Coupling coefficient

In its most basic form, a directional coupler is a piece of equipment that takes electricity from a transmission line and then transmits that power back through the line. It is possible to sample power within a measurement system or split power to several distinct ports using this component.

The coupling coefficient is one of the many characteristics that a directional rf coupler has, although it is typically considered to be the most important of these qualities. This is expressed as a ratio of the coupled power to the incident power, and it is measured in decibels (dB). A power coupling of at least 20 dB must be able to be delivered by the directional coupler; however, it is possible to acquire a value that is higher than this.

A coaxial waveguide with a design that is suitable for converting from coaxial to microstrip is what constitutes a 20-dB directional coupler. It is built with a symmetrical structure that consists of a port for input, a port for output, and a port in between the two. Typically, a matched load will be used to cut off communication through this port.

Why choose Hefei Topwave 20 db directional coupler?

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Common uses

Power leveling and signal sampling are examples of typical applications for a directional coupler with 20 dB of gain. In the field of radio frequency engineering in particular, this particular sort of signal processing device is quite significant. Signals in a cable-distributed antenna system can also be sampled with its help using this technique.

When sampling RF signals with a preset degree of coupling, rf directional coupler are the tool of choice. It is common practice to sample microwave signals with them, and they are a valuable instrument for determining the power level of a given system. Additionally, they are useful for the construction of antenna array feeding networks as well as polarimetric imaging radiometers.

Typical directional couplers have four different ports that can be used. Input is provided through two of the ports, and output is provided by the other two. In most cases, the input port is also referred to as the incident port. The port that outputs data is referred to as the transmitted port. Forward coupled port is the name given to the third available port. The port that allows for reverse coupling is the fourth one.

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