Properties and Uses of the Three Types of Directional Couplers

Posted on

A pivotal component in a network analyzer, a directional coupler is used to test the incident and reflected waves of RF frequency signals. Comprised of four ports, each port is carefully paired to minimize any losses. These passive RF units take a small amount of energy from the primary transmission and redirect it to the other ports. The level of isolation between components can affect the performance of the coupler. Here are the three basic types of directional couplers.

Standard Directional Couplers

This is the most basic form of RF directional coupler. It has one coupled port with a port that is internally terminated. This is useful for measuring power in a single direction. If the reverse of power needs to be measured, the component must be physically reoriented in the flow.

Bi-Directional Couplers

As a four-port component, a bi-directional coupler can measure both directions of power simultaneously. With no terminated ports, this part does not need to be transposed to monitor reverse or forward power. One important thing to note, though, is that the loads on the coupled ports must be matched at 50 Ohms. As long as the input has the intrinsic impedance of its transmission line, the energy should have minimal reflections. However, if the port is mismatched or open, the power can be reflected back into the main transmission path causing overheating and failure of the component.

Dual Directional Couplers

Comprised of two standard directional couplers, the two coupled ports – for monitoring the forward and reverse power—are each individually terminated in this component. This makes a distinction between the forward or reverse ports. This is particularly beneficial in reflectometer measurements and, unlike bi-directional couplers, is not dependent on matching the power loads on the coupled ports.

All three of these types of directional couplers are used to monitor power injection or the flow of power through a system. It is a tiny but integral part of most microwave and semiconductor industries.… Read More...

Business Products & Services

The Benefits of Web Design for Your Business

Posted on


Changes in times that are increasingly sophisticated make us inevitably have to follow these changes. Progress in science and technology contributes in many ways. The use of web design to make your business easier and more attractive is one example of this technological advancement. Many companies are reluctant to use websites to build their businesses to be more developed, whereas by making web designs is an effective way to increase your business.  Besides, the use of an effective web design can also make a website more attractive and create a website that is often visited by users. There are several benefits of web design for businesses that will be very useful for you, especially young entrepreneurs.


  1. Promotion

As a means for effective and efficient promotion for everyone in the world, because in this digital era various information can be accessed easily, quickly, and from anywhere. Can be used as an introductory medium for your company or business by entering important company information, either company vision or company mission.


  1. Imaging

Make it easy for you to see consumer responses to your website, one of which is in the form of criticism and suggestions given by visitors to the website. Build a positive picture of your business with an attractive web design to attract visitors. Professional business, of course, must be supported by a website that can describe the advantages of your business.


  1. Target Marketing

It could be a way to get a data base from consumers and find out where the most consumer dominance in an area, which data can later be used as your reference to develop or make your business even better.


  1. Conclusion

By knowing the benefits of web design for your business, of course you have to focus more on the use of the website. You don’t need to bother looking for employees who are experts in web design because there are so many web design services that offer web creation services that you can make choices. Like the LinkHelpers Scottsdale Website Design & SEO web design service providers that offer you various facilities ranging from responsive web design, ongoing web site maintenance, SEO optimization to facilitate your business and of course supported at an affordable price.… Read More...