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how to choose multiple substrates of patch for maximum band width at 10GHz

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saikrishna011

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hi, first let me thank you for every one for good threads. its been very useful for my project

i have problem with increasing band width of patch
i am getting 800MHz at 10GHz(8% fractional BW) by E shape
i want to increase to 15 to 20 percent. is it possible
h=1.5,er=2.2
please suggest me how to choose multiple layers to increase BW.
 

please suggest me how to choose multiple layers to increase BW.

Hello.
The bandwidth of microstrip patch can be increased by using of coupled resonators (patches):
-APERTURE COUPLED MICROSTRIP ANTENNAS;
41_1334431092.jpg

-STACKED MICROSTRIP PATCH ANTENNAS https://www.edaboard.com/threads/214935/
43_1334431092.jpg
 
you can simply increase the BW by working on ground plane also.
 

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