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Questions about adaptation of patch antenna!

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kabylie

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hi
Adaptation of a patch antenna, I have some questions

https://obrazki.elektroda.pl/40_1339061969.jpg

1-how to calculate the length of the microstrip line feed ? (look image)

2-how to calculate the width of the two slots caused by the notch ?(look image)

thank you!
and for adaptation with quarter wave
https://obrazki.elektroda.pl/84_1339062724.jpg

1-how to calculate the length of transmission line of 50 ohm?
2-and for quarter wave line , we will use effective permitivity including width of the line of quarter wave , and not use the effective permitivity of the patch antenna ?

goodbye and thnk's
 

THANK YOU SUNNY.
but i search formulas , or estimations to calculate what I asked(look at the link)

if someone could clarify...
 

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