RF Coaxial Fixed Attenuators

Attenuators are fundamental components of RF and microwave circuits and systems. Often found in nearly all RF applications, attenuators play a key role in receivers, transmitters, and test and measurement systems. The main purpose of an attenuator is to reduce the signal strength before sensitive circuit elements. Attenuators can be manufactured using a variety of techniques, and understanding the available options for attenuators can help engineers choose the best attenuator for their application.

Attenuators reduce only the desired or unnecessary signal strength along the signal path. They can be used to reduce the output signal of the device under test prior to sensitivity testing and measurement receivers to ensure more consistent impedance matching, or to ensure precise control of the signal amplitude at the transmitter output. The attenuation level of a device - the amount of signal power/voltage lost through the device - is usually measured in decibels (dB) or a voltage ratio.

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