High Pass Filter Bode Plot. Here the signal is attenuated or damped at low frequencies with the output increasing at 20db decade 6db octave until the frequency reaches the cut off point ƒc where again r xc. Using the transfer function we can plot a frequency response of the filter circuit.
At this cut off frequency point we get 3db gain and at this point reactance of the capacitor and resistor values will be same i e. In addition it graphs the bode plot for magnitude in decibels and the phase in radians. This represents the high frequency gain.
Bode plots of higher order filters.
High pass filter frequency response or high pass filter bode plot. The bode plot or frequency response curve above for a passive high pass filter is the exact opposite to that of a low pass filter. Here the signal is attenuated or damped at low frequencies with the output increasing at 20db decade 6db octave until the frequency reaches the cut off point ƒc where again r xc. Generally to draw a bode plot it su ces to nd these three features.
