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fractal antennas book
Here are some basic papers on fractal antennas:
The only text book with fractal antenna information is Antenna Theory and Design 3erd Edition by C. Balanis
Im guessing its a point to point link (transmitter and reciever at fixed locations)....
In that case you should make sure the Tx antenna is high enough for line of sight communication ( you have to account for the earths curvature), in case it is then use microwave link with a couple of...
I suggest you look in a couple of books you can finde here in the forum:
Antenna theory Design and analysis
by C. Balanis
Modern antenna Design
R. Milligan
go to the reflector antenna chapter.....
The first resonance of a 4 iterations sierpinski gasket occurs when the monopole's height is arround 0.15 lambda. This may vary a bit for a 2 o 3 iteration gasket but you should use this value as a starting point and then tune your height until you get what you're looking for.
In the end its the same thing! the results will be the same, the difference is the programming.........I think UPML is a little easier because you dont have to "split" the field components.
fractal dimension sierpinski
How many iterations will your sierpinski gasket have??
Sierpinski gasket is a multiband antenna, do you want its first resonance (omnidirectional radiation pattern) to be at 4 GHz, or do you want 4 GHz to be a higher resonance ( directive pattern) ??
near field pattern calculations
Field monitor will give you the field at a given frecuency . Probe will give you the field in the TIME domain at a specific point you choose.
It is well known that Fortran and C will run a FDTD program faster tham matlab. In fact most scientific computing that requires a heavy amount of calculations are carreid out in fortran.
My advice is to get started with matlab because its easy to debug and plot your results.....but as you...
Use the "pick face" option....... that way you pick the entire surface......you can find it in the menus....but you should also have an icon in the toolbar....
You cant use metalic boundary for an antenna simulation!!! You MUST use PML boundary...... all you have to do is correctly define your ports on the microstrip antenna and then put PML on all boundaries.
Absorbing boundary conditions don't completly absorbe incident waves, but they reflect such a small part of the wave that they become a good aproximation of free space.
Assuming your incident wave has a value of 1, if your reflected wave has a value of 0.00001 as you said, your Absorbing...
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