For those working with radio frequencies and other telecommunications technologies, managing signal loss is just part of the job. When power is coupled or divided, the different internal arrangements of the component being used will produce varying levels of signal loss. Sometimes that loss is reflected or leaked and can mix with the output signal. This creates unwanted distortion in the signal and the engineer may be unable to filter it out.
If RF power dividers are needed, there are a few choices. Each has its way to handle the signal loss. A reactive power divider has limited isolation and is used in the feed network of an antenna. Couplers tend to have an uneven division of power since the transmission is partially split to another output which is sometimes terminated internally. The most common couplershave four ports channeling the signal through the input while dividing a … Read More