| 摘要 |
An input signal is applied to first phase shifter means whose phase shift amount-vs.frequency characteristic is a square-law characteristic, then the output from the first phase shifter means is amplified by an amplifier, and the amplified output is applied to second phase shifter means which has a phase shift amount-vs.-frequency characteristic is substantially inverse to that of the first phase shifter means, thereby obtaining the output signal from the second phase shifter means. <IMAGE> |
