An object of the present invention is to calculate the absolute value of the reflection coefficient, the angle, the standing wave ratio, and the impedance by using a Smith chart. Since it is difficult to obtain an accurate value because it depends on the naked eye measurement using the absolute value of the reflection coefficient and the linear scale of the standing wave ratio by measuring the distance, the present invention is to overcome and solve the present invention. In order to put the Smith chart on the digitizer, the digitizer has a built-in microprocessor to perform calculations, and it is equipped with a liquid crystal display to handle and display various calculations and controls, and the user can It consists of a 20-key keyboard attached. In addition, since it has a built-in interface that can be directly connected to a PC or W / S, it can send readings directly. Therefore, the absolute value of the reflection coefficient and the exact values of the angle, standing wave ratio, and impedance should be measured when designing a high frequency circuit. Although it is difficult to describe the value calculated from the hand in the chart by the method that satisfies the approximate accuracy, it is impossible to express the points completely accurately by using the Smith chart solver of the present invention, but the inconvenience and the chart that must be calculated by hand manually Can free up efforts to read;Therefore, it can contribute to the design of an effective high frequency circuit.
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