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3dB Directional Coupler

Within the realm of wireless communications, the equipment that is utilized the vast majority of the time is known as a 3dB Directional Coupler. Having said that, there are a few issues that come along with using a device of this kind.



Among the vast majority of technologies that are currently in use, directional couplers have been put to use for a very long time. In addition to serving a measurement purpose, they help cut down on the amount of signal that is lost during transmission. However, the design process for them is difficult, and they must be fabricated with precision. In addition, their performance can change depending on the mismatch between the loads that they are expected to output. Because of this, it is essential to ensure that directional couplers are designed with the right coupling factor.

A pair of parallel coaxial cables are brought into physical touch with one another inside of a directional coupler. In this configuration, the two fines are separated by a conductive substance. Generally speaking, this chemical is classified as a dielectric. It is feasible to design directional couplers using technology such as microstrip, stripline, or coax. It is necessary for the ports of the coupler to have a match that is better than -50 dB in order to produce an optimal match.

Within bigger radio frequency integrated circuits, the Directional Coupler can be created. This is because directional couplers normally only draw a very small portion of the entire amount of power that is fed into the system. Directivity of approximately 30 dB is desirable for the majority of cellular applications.

Why choose Hefei Topwave 3dB Directional Coupler?

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