What You Need To Know About Directional Couplers


Couplers and power dividers are devices used in many devices, usually radio and microwave technology. When you are looking to purchase these items, for work or for play, it is a good idea to know how they work and where you are likely to need them. This can help you narrow down your choices to the right fit for your project.

How Do They Work?

There are a couple of different types of both couplers and power dividers which are named and categorized by whether they couple energy directionally, divide power or combine it. In directional couplers, transmission lines are set close enough to each other that energy coming in one is coupled to another. These units have four ports where one port is isolated from the energy source to direct the coupled energy waves where they need to go.

When you are looking for couplers it is helpful to know how you want them to work because they can either be forward or reverse. In forward couplers, the waves are directed in through three ports and directed out the fourth in a parallel wave. In reverse couplers the energy is directed out the fourth port in a reverse wave.

Where Do You Need Them?

Couplers and power dividers or combiners are frequently used to help monitor or enhance signal waves in radio equipment and microwave circuits. Whether you are building or repairing your own equipment, these units can be helpful in keeping everything up-to-date and functioning well.

Couplers and power dividers can have many useful applications in radio and microwave technology. The design of your equipment may use one or more of these devices which may need to be built in, repaired or modified to meet your needs. It is a good idea to know which types you need and how they need to be used so you can order the right parts and replacements.