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It seems that I have find a way improve my model and I am now working on it. I will inform you of any possible improvements as soon as possible. Thank you for your attention.
Hello
I am trying to model a microwave transistor using Agilent ADS built-in models. The model name I have chosen is EE_HEMT model from the GaAs library. I studied the model details from the help files provided by the Agilent and after separation of the parameters into DC and ac ones, I tried...
Re: phd suggestion
Dear friend,
As one of the guys said, your subject of research in PhD program depends to a great extent to your own interests and pre-research during your MSc period.
But just as a suggestion, I can say the sunbect of ultra high frequency circuits and also RF MEMS are two of...
double integral matlab
Hi everybody
Do you know how to calculate a double integral in MATLAB when the
inner integral limits are themselves functions of the outer variable?
Considering that I don't want to change the variables.
Hi
Be careful yorande.If you use the '*' sign between i and other variables,it will consider it as a variable if you have asigned it some value before.
So check whther you have not defined it as a variable before and also use it as echo14 has showed.I hope your problem cab be solved.
Hi
I have encountered an abbreviation "sup" in an article
just as below:
d(x,y)=sup|x(t)-y(t)|
What does "sup" stands for in functional analysis?
I am a beginner in this issue.Please explane it a little.
Thank you so much.
Hi steve10
u(t) is the unit step function which has the value 1 for t>0 and zero for t<0.
I will send its derivation in complex ky plane for you.
I am sorry for my delay.
what is wave-let?
Hi
If your field of interest is electromagnetics,this is a nice reference below.But Wavelets are used in
Digital Signal Processing much more and there are a lot of books about it in Signal Processing.
h**p://www.amazon.com/exec/obidos/tg/detail/-/047141901X
Thank you steve10.First I should correct an error in the doc file I have attached.
In definition of variable there is a 2 in the power.So we do have branch points. Another point is that how can you be so sure that this integral diverges?
For instance inverse fourier transform of 1/ky^4 is (y^3...
Thank you both for your useful comments.
The answer of "irfan1" is definitely what I wanted and I learned something else
from the answer "steve10".
But as I found out we should use ' ' instead of " " in defining the string m.(to irfan)
As I studied in IEEE papers,there are three main techniques in treating singularities that arises in sommerfeld integrals in full wave analysis:
contour-deformation approach,the folding technique and pole extraction method.
I could not find any discription about two latter ones.
Can anybody...
Thank you
After some large amount of manipulation, I could split my integrand into small inseparable parts which looks more like each other.I show one of these parts in the file that I have sent below.
Do you know how can I choose the path of integration in complex ky plane.
notice that there...
Hi
I have a problem in assigning a large number of variables with increasing indices.
Here is a simple example which shows exactley what I want:
var1=a; % a,b,... are are numbers or outputs of some functions
var2=b;
var3=c;
.
.
.
var100=z;
How can I...
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