| 摘要 |
PURPOSE:To compensate the deviation of loss at low frequency band by the delay equalizer itself, by connecting a resistor in parallel with the capacitance of branch arm of the delay equalizer. CONSTITUTION:The resistor R9 having almost the same impedance as C8 around f4 is connected in parallel with the capacitor C8 connected to the common return line of conventional delay equalizers. This equalizer is constituted with two secondary full passing networks, and the loss characteristics are as shown in the curve 6. With cascade connection with LPF having the curve 3, the loss characteristics of curve 7 is shown, and the deviation of loss at the passing band f0 to f1 is made flat, the impedance of the delay equalizer is not almost deteriorated, and the group delay time is almost the same as conventional delay equalizers. |
