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Seeking Guidance on Microstrip Antenna Design with CST

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Kudo Holmes

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Hello everyone!

I'm working on my graduation project and could use some help with designing microstrip antennas using CST. As a beginner in this field, I'm looking to learn the practical aspects of antenna design, including simulation techniques and the use of CST. I prefer learning through books rather than videos, so any recommended resources would be greatly appreciated.

Specifically, I'm interested in understanding the practice of cutting parts of the patch in microstrip antenna design. I've noticed that some designers incorporate cuts or discontinuities, but I'm unsure about the principles behind these modifications. Any insights on when and how to cut the patch would be valuable.

If you have experience with CST and microstrip antennas or know of any useful references, please share your knowledge. I'm eager to explore the simulation and practical aspects of antenna design and apply my theoretical understanding.

Thank you for your assistance, and I look forward to your input!

Best regards,
 

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volker@muehlhaus said:
I think you refer to inset feed and the cuts used there. Here is an introduction to the feed methods:

Antenna-Theory.com - Rectangular Microstrip (Patch) Antenna - Feeding Methods

Feeding methods (method for driving power to the antenna) are introduced. The direct feed, the inset feed, the aperture feed and the coupled or indirect feed are presented for microstrip antennas.
www.antenna-theory.com
Click to expand...
thank you so much,
yes, inset feed was one of the cuts that i was talking about, but also sometimes they change the shape of the patch, in other shapes and they make holes and so on,
based on what they make these changes?
i mean, i know for optimisation , but based on what they remove these parts and they make holes and cuts and so on?
and thank you so much
 

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vfone said:
In a patch antenna, cutting a slanted slot would make the antenna to change from linear polarization to circular polarization.

But on the net you can find many nonsense cuttings on the patches (as the one in the link below):
Click to expand...
exactly !
That what i was talking about (the 2nd one)
Based on what they do these cuts ??
or just randomly to get a unique design ?
 

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