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Hi... can you please help me find information on how to make a 'monte carlo' simulation of an Optimum receiver with signal correlator and detector for QAM and PAM signals?
I am mostly interested in the correlator part...
Thanking you in anticipation...
electrical conductivity of air
Hi,
I'm not finding the equivalent electric conductivity of air anywhere! I know that for a perfect conductor, the conductivity goes to infinity, but what about for air???
Thank you
Hi, I am a bit confused on where the source on a PIFA antenna is situated exactly!
I know, there is a feeding wire passing through the ground plate and end on the radiating plate. But If I want to simulate the fields in FDTD, where do I place my excitation pulse? Is it in between the ground...
Re: How to calculate the input impedance from FDTD simulatio
Thanks...
But what about 'T'??? How does it control the pulse width?
Concerning the equation
Ey(i,j,k) = ( cos (2 * pi * f * (N*dT - t ) ) ) * exp( -( (N*dT - t )^2 ) / 2*T^2)
what values should i j and k take???
Info on Gaussian Source!
Hi...
I need some info on this gaussian source:
Ey(i,j,k) = (cos(2*pi*f* (N*dT- t0) ) ) * exp(-( (N*dT-t0)^2 ) / 2*T^2)
What is 't0'?
and how does 'T' control the width of the pulse?
Thanx
Re: How to calculate the input impedance from FDTD simulatio
Hi...
I've tried it... but the values obtained is not as expected!
I think the problem is with my gaussian source which is:
Ey(i,j,k) = ( cos (2 * pi * f * (N*dT - t ) ) ) * exp( -( (N*dT - t )^2 ) / 2*T^2)
where f is the frequency...
Re: How to calculate the input impedance from FDTD simulatio
Ok... but the integration can be aproximated to the sum of the fields etc. Then I obtain a value for the voltage and a value for the current!
So when do I use the fourier transform? and How?
Thanking you in advance!
Re: How to calculate the input impedance from FDTD simulatio
Thanx for the advice...
Concerning the E, i just have to calculate it taking values from the ground to the strip on a single line.
But concerning the H, do I need to calculate it taking values surrounding that line at each height...
Hi,
I have seen that the input impedance may be calculated by the fourier transform of the line voltage and the line current and then dividing both inputs. But how can this be done? At what time step shoud I stop the simulation to calculate the voltage and the current???
Re: 3D FDTD codes in matlab
Thanx for your help!
My FDTD codes seem to work...
Now I need to obtain the input impedance and the VSWR in order to obtain the bandwidth of my antenna!
I seen that the input impedance may be calculated by fourier transform of the voltage and current. But how can...
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