If anyone can help me in this regard by providing any resources, i would be grateful. Actually, i worked with microstrip patch antenna. Now, i need to design a pencil beam antenna but i haven't enough knowledge about it.
Thank you.
A single patch will never give 10 dB gain, and I wouldn't call 10 dB gain a pencil beam. It's about 60 degrees wide.
To increase the gain you need to use several patch antennas in an array. This becomes more complicated if you want UWB. Look up UWB patch arrays. You may need to use something like Vivaldi antennas if you want UWB.
Actually I do not know how the model of antenna have been design but setting phase of array according to beam shape principles in far field or by fitting the phase according to the shape is possible also.
This article may give you some inspiration:
https://www.mdpi.com/2079-9292/11/12/1892
Designing a pencil beam UWB patch antenna with more than 10 dB gain requires careful consideration of various parameters and design elements. Of course as Malcolm said you will need an array of antennas, not just a single patch. Then a general procedure that can be followed:
Good luck!
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