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RF Components: Mixer Products

Understanding Linear Slope Equalizers

The following is a summary to simplify the terminology referred to in our Mixer product line.

Conversion Loss (Gain): The ratio in decibels (dB) of the output power to the input power. It essentially is a measure of the efficiency with which the mixer converts the signal from RF to IF, for down conversion, or from IF to RF, for up conversion.

VSWR and Return Loss: The VSWR is a measure of the reflected power at a specified port relative to the input power at that port. The return loss (dB) is another means of classifying this power relation and can be calculated directly from the measured VSWR. Typical VSWR values for MICA mixers are less than 2.0:1.

1dB Compression Point: The RF input power at which the conversion loss is 1dB higher than the small signal (-10 dBm) input conversion loss.

Noise Figure: The ratio in (dB) of the signal to noise ratio at the mixer input, whether IF or RF, divided by the signal to noise ratio at the output. The noise figure is normally about 0.5dB higher than the conversion loss.

Third-Order Input Intercept Point: The Third-Order Input Intercept Point is an imaginary point where the desired output-signal and both the third order intermodulation products are equal.
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