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HAI ALL,
I have a doubt about substrate height of the patch antenna...
If we use substrate material as FR4(dielectric constant=4.4) ..and while calculating the antenna equations how can i take the "Height", if the pcb and the ground plane is separated with air gap ?? Is the substrate height is "thickness of FR4" or "thickness of FR4+air gap"?? and is there any change in dielectric constant ???
I have a doubt about substrate height of the patch antenna...
If we use substrate material as FR4(dielectric constant=4.4) ..and while calculating the antenna equations how can i take the "Height", if the pcb and the ground plane is separated with air gap ?? Is the substrate height is "thickness of FR4" or "thickness of FR4+air gap"?? and is there any change in dielectric constant ???