Article | April 14, 2021

Accurate Gain/Phase Measurement At Radio Frequencies Up To 2.5 GHz

By John Cowles and Barrie Gilbert

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Electronic circuits fall into two broad categories—those that process and transform signals and those that measure signals. Their functions are often combined, as in the IF section of a receiver— which processes the signal (by amplification and demodulation), and also delivers an indication of received signal-strength (the RSSI function), a slowly-varying voltage that may be displayed and/or used for automatic control of variables such as gain and frequency (AGC and AFC). For more information on this topic, download the full article.

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