Abstract: Introduce the basic method and the step of the Worst Case Circuit Analysis in radio frequency circuit.Considering the engineering application,the authors discusses the establishment method of the Worst Case database of radio frequency component,introduces the model establishment process and the analysis method of the Worst Case Circuit Analysis by using the radio frequency amplifier as the exemplification, and carries on the discussion of the Worst Case Circuit analysis result.

Key words: WCCA, radio frequency circuit, tolerance allowance