i have tried adding lumped element but i think i didnt add it correctly so any help?
Feed line length and width can be modified to get good results. Moreover, width of the antenna (it it is rectangular) can also be increased to get enhanced bandwidth.
Dear Noura,
there are several techniques to enhance the antenna bandwidth depending on the antenna type. what is the kind of proposed antenna you want to design?
Dear Noura
There are many methods and techniques to improve the quality bandwidth of microstrip antenna such as the insertion of the slots in radiation element or in the ground plan, and you can modify the feed line it helps greatly improve antenna quality.
Dear Noura, If you dont have any restrictions in the design than you can use one of the following things to improve the bandwidth
Thick substrate
Aperture coupling
Stacked patch antenna
Slits or slots in the design
There are many more techniques, but these will be enough to get the desired results.
you can try the below methods to increase antennas bandwidth.
1. Increase substrate height.
2. Include partial grounds.
3.Include round shapes.
4.Include slots.
5. DRAs can also be used to enhance BW.
Please follow the discussion:
https://www.researchgate.net/post/How_can_I_increase_the_bandwidth_of_a_microstrip_patch_antenna.
As the other proposed you can use one of these previous methods to get a high bandwidth. Also, regards HFSS, you can use the optimization algorithms already implemented on HFSS and select the important parameters in your design and put the bandwidth you need as in the attached example.
Work upon the ground plane, if you are doing printed monopole. Also you may use tapered feed/matching elements like QWT between feed and monopole.
This meaning there is a mismatching between the antenna and the port, try to use inset feeding method and then make the optimization procedure on the feed length, width and the gap between the patch and the feed line.
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