MICROWAVE IMPEDANCE MEASURING INSTRUMENT

摘要: PURPOSE:To obtain a simple, inexpensive measuring instrument by making the frequency of signal source variable, finding voltage variation between connection load to be measured with cable end and its short-circuiting, maximum value minimum value, frequencies corresponding them. CONSTITUTION:The high 7 whose is variable connected input 1 for measurement which long enough as compared wavelength frequency, 6 terminal 1. Then, varied gradually detection output reflected wave from read stored voltmeter 10 at terminal. When length characteristics are calibrated, short-circuited, varied, store similarly, thereby coefficient reflection impedance values both voltages voltage. A computer CRT incorporated in this device displayed on Smith chart polar coordinates, so that readable directly.