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I have the soft copy of the book "Frequency Selective Surfaces, Theory and Design" written by Ben A. Munk".
Let me upload it, other wise i will send you by email.
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Already attached in the above post. Hopefully this will help you. All the best.
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Hey, in order to design dual band microstrip patch antenna, first of all you have to decide the type of patch element either rectangular, circular, square or triangular.
You also need to find some reference papers based on slot configurations and then you can choose either C slot, H slot or I...
If you are using CST MWS then choose FSS unit cell from the template and then design the required structure.
For boundary conditions choose unit cell boundaries, it will assign Floquet's port on each side of the structure.
Reflectivity you can see form the s11 curve.
well in that case ......... u can use the following references. They will help you to understand the software and hopefully you will be able to design your required antenna. Try to simulate it to get the results and if you face any problem, you can ask again.
Here you will find some of the examples and references which you can use to model the filter in CST. Also refer to the CST software examples, you will find so many on filters.
I would suggest you to go through IEEE Explore and other article directories to find some related articles on spiral antenna and double slot antenna, and then by using the given dimensions try to design in HFSS.
Hey kaaakTus, For designing FSS structures CST provides us with the option of FSS - Unit cell(FD) template. Just select it and design your structure. Use unit cell boundary conditions and it will automatically assign the ports as Zmin and Zmax.
Hey, i would suggest you to simulate it using master and slave boundaries with a wave port and then compare the results with those you already simulated. Hopefully you will be able to find the issue related to the phase plot.