7 Threads found on edaboard.com: Plot 3db Bandwidth
I have to obtain the axial ratio bandwidth .But when I tried to plot this graph, there is no point below 3db and also shows some ripples at frequencies. What has to be done to improve the axial ratio plot. pls help me
RF, Microwave, Antennas and Optics :: 06-18-2015 04:02 :: Blesvin :: Replies: 0 :: Views: 88
The circuit is designed as 2nd order Multiple feedback active cmos filter, I am not sure to check -3db BW by considering Loop gain or Closed loop gain plot.
Analog Circuit Design :: 06-09-2015 15:07 :: sudeep_ :: Replies: 8 :: Views: 247
your plotting the Nyquist bandwidth, they are not different. The 3db bandwidth is the full range of frequencies over which the signal is present 3db below the max.
When you plot depending on how you plot, the plot can soemtiems extend towards negative (...)
Digital communication :: 07-18-2011 20:33 :: kalyanasv :: Replies: 5 :: Views: 716
For a nonlinear Class E Power Amplifier, if I want to check its 3db bandwidth, do I just do a parametric sweep analysis of frequency of the input signal and see the frequency vs power gain plot? (Power gain can be added as an expression in the calculator) If not, what's the correct way to get 3db bandwidth (...)
RF, Microwave, Antennas and Optics :: 05-26-2011 11:47 :: sharethewell :: Replies: 1 :: Views: 1171
Consider a single real zero in the left half of the s-plane. This will have the form (s/z+1) ==> (jw/z+1) in time constant form. At low frequencies (w near 0), the magnitude of this term is approximately 1 ==> 0 db. At high frequencies (w/z >> 1), the magnitude of this term is approximately |w/z| ==> 20*log_10(|w/z|) db. At frequency w=w1, t
Elementary Electronic Questions :: 05-25-2007 11:21 :: powersys :: Replies: 1 :: Views: 742
If you have the specs of a comercial opamp look at the plot gain versus frequency and check the gain 3db below the DC gain.
Now, if you're simulating your opamp just perform an AC analysis and plot gain versus frequency and measure the gain in the same way.
Elementary Electronic Questions :: 04-12-2007 22:34 :: STOIKOV :: Replies: 8 :: Views: 1690
vary the input frequency and calculate output voltage and plot graph between
frequency and voltage ratio in db and find 3db bandwidth
Elementary Electronic Questions :: 03-13-2006 11:18 :: satyasri :: Replies: 1 :: Views: 848