| 摘要 |
PURPOSE:To automatically adjust a DR filter by calculating an error amount between a theoretical value and an actually measured value at the sampling point of a frequency/level characteristic as one characteristic of the DR filter at a microcomputer. CONSTITUTION:This system is provided with a means for measuring a returning loss frequency/level characteristic being one of characteristic waves by supplying microwaves to a band pass filter using a dielectric resonator, a means for adjusting the error amount between the returning loss frequency/level characteristic and the theoretical characteristic by selecting and revolving an adjusting vis so as to minimize the error amount, and a means for varying the revolving amount of the vis corresponding to the fluctuation of the error amount in the case of selecting and revolving the adjusting vis so as to minimize the error amount. Namely, two-dimensional data are inputted by a means P1 and the error amount is calculated by a means P2. When the vis is selected by a means P3 and revolves by a means P4, the returning loss waveform is changed, the two-dimensional data are inputted again by the means P1 and a series of operations at the means P1-P4 are repeated. |
