| 摘要 |
PURPOSE:To obtain excellent signal having no FM multi-path distortion with a simple configuration, by controlling the amplitude of the signal delayed with the amplitude adjuster and rejecting the interference wave component through the application of the output to the output of the mixer. CONSTITUTION:The mixer 4 synthesizes the FM input wave and the local oscillation signal, and the low conversion output is frequency-divided by N with the demultiplication circuit 21. Further, this output is delayed with the variable type delay circuit 6 and it is fed to the multiplier 22. On the other hand, the amplitude of signal delayed is controlled with the amplitude adjuster 7, and the interference component is rejected by adding this output to the output of the mixer 4. Thus, excellent signal having no FM multi-path distortion can be obtained with a simple configuration. |
