Measurements of Current Noise and Distortion in Resistors
* Presenting author
In RF telecommunication systems, the passive intermodulation has become a significant problem to get stable radio communication. The passive elements’ distortions are actual problems in telecommunication systems due to multi-carrier frequencies. In audio systems, much more frequency spectrum peaks are existed and the spectrum peaks change in time and time. If a resister generates some distortions, the distortions are significant problems in elector-acoustic systems. In the resistor, there is current noise generated by the current flow. Due to the influence of the current noise, the current flow is not always constant, so this may be nonlinear response. Then, it is thought that the resistor has nonlinearity, and the resistors’ nonlinearity causes the signal to be distorted. In this study, we first measured the current noise of several types of resistors at different parameters; the resistance value, the applied voltage and wattage. Then we designed a measuring circuit for the distortion and measured the distortion in the resistors. Finally, we try to find the relation between the current noise and the distortion.