Rf Power Dividers

Written by Kelly Wand
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RF power dividers make a single signal that much more valuable by routing it in a number of different directions. Its operation is quite easy to fathom. Picture draining water through a Y-shaped funnel. One stream of water going in would lead to two streams of water coming out the other end.

RF power dividers can be designed to be quite a bit more complex than simple Y-shape units (commonly called T-shape components in the RF industry). While there are units that simply split a signal in two, others divide a signal in as many as forty-eight ways. Such products are quite useful when it comes to networking, as one might imagine.

Of course, there are certain trade-offs to be made when sending a signal off in forty-eight separate directions. One of these issues is known as "insertion loss." This metric measures the reduction in power of the divided streams when compared to the strength of the original signal. Such losses can be mitigated by well-designed equipment, but rarely are they cannot be averted altogether without the use of additional components.

RF Power Dividers: Living in Isolation

Port isolation is of paramount importance when dealing with RF power dividers that sport only two ports, never mind those that include many more. Without isolation, split signals may reflect back on the original signal, potentially garbling transmissions from all ports. While reflection can be thwarted, it takes careful circuit design to achieve such a victory.


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