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Type: Posts; User: math_daoud

1. ## Thread: Simulate the third-order synchronous generator.

by math_daoud
Replies
0
Views
135

### Closed: Simulate the third-order synchronous generator.

hi, everyone,
I want to simulate the third-order synchronous generator, but I don't know how to set initial conditions:
1- delta (angle of d-axis ahead of a-axis)
2- e'q (transient internal...
2. ## Thread: Cost function in optimisation

by math_daoud
Replies
0
Views
9,060

### Closed: Cost function in optimisation

Dear all,
in optimisation we can use the Mean Squared Error as a cost function,
Can anyone tell me what are the others type of the cost fonction
thnks
3. ## Thread: patch antenna polarization

by math_daoud
Replies
0
Views
607

### Closed: patch antenna polarization

Dear all,
i designed a patch antenna in CST, i wanna know wat kind of polarization of this antenna, any one can help me,
many thanks
4. ## Thread: surface current and isolation of antenna

by math_daoud
Replies
0
Views
746

### Closed: surface current and isolation of antenna

Dear all;
i have tow questions:
I)what is the relation between surface current and isolation of patch antenna?
II)the current surface is better when it is low or high?
anyone can help me
thanks
5. ## Thread: measured and simulated S11 of a patch antenna

by math_daoud
Replies
3
Views
1,338

### Closed: Re: measured and simulated S11 of a patch antenna

but we notice thet the measured S11 larger than the simulated one in 2.4GHz but smaller than the simulated one in 3.7GHz ?
6. ## Thread: current distribution on the antenna & antenna efficiency

by math_daoud
Replies
0
Views
735

### Closed: current distribution on the antenna & antenna efficiency

Hello,
anyone know how to:
1-Draw the current distribution on the antenna.
2-Draw the antenna efficiency.
of a patch antenna in cst...
7. ## Thread: measured and simulated S11 of a patch antenna

by math_daoud
Replies
3
Views
1,338

### Closed: measured and simulated S11 of a patch antenna

dear all
in the following figure, anyone tell me why is the measured S11 larger than the simulated one in low frequency but smaller than the simulated one in the high frequency

139630
8. ## Thread: How to design dual band microstrip patch antenna in CST Suite 2016?

by math_daoud
Replies
1
Views
709

### Closed: Re: How to design dual band microstrip patch antenna in CST Suite 2016?

you can search in youtube.there is lot tutorial

by math_daoud
Replies
0
Views
510

### Closed: plot 2D radiation pattern

Dear All
i have data from an expremental mesure of a patch antenna (txt file).ther are lots informations in this file, please how can i plot 2D radiation pattern(E-plane and H-plane) in matlab or...

by math_daoud
Replies
6
Views
2,254

### Closed: Re: plot 2D radiation pattern

Dear sree479
but, I do not know how to do this, as I said there is a lot of information in this file .
here is a part of the txt file
can you help me?
11. ## Thread: Coding and decoding a binary individual

by math_daoud
Replies
0
Views
7,126

### Closed: Coding and decoding a binary individual

dear all
how we can coding and decoding a binary individual in genetic algorithm.
thenks

by math_daoud
Replies
6
Views
2,254

### Closed: plot 2D radiation pattern

Dear All
i have data from an expremental mesure of a patch antenna (txt file).ther are lots informations in this file, please how can i plot 2D radiation pattern in matlab or origin.
Thank you
13. ## Thread: patch antenna fabrication

by math_daoud
Replies
4
Views
1,568

### Closed: Re: patch antenna fabrication

thank you , i will try this

by math_daoud
Replies
0
Views
977

### Closed: plot radiation pattern data (2D)

Hello Everyone,
I'm trying to find a way to plot radiation pattern data (2D) in a text file (DF1 file)
how can i do this in matlab
thenk you
15. ## Thread: patch antenna fabrication

by math_daoud
Replies
4
Views
1,568

### Closed: patch antenna fabrication

Dear All,

I have simulated a patch antenna using CST 2014 the result gave me very good BW and radiation pattern, from here i am new and i have no idea how to start the fabrication, my question is...
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