Hi guys
This is my first tread, because i am new on this webside. I hope you can help me with this question:
This problem deals with the adaptation of a micro strip patch antenna with a 50 Ω microstrip line. (I am using the print: Rogers Duroid 5870, 31 milliinch).
patch given : W=25 mm, and l=18 mm.
a) For the patch i have too use the frequency f = 5.4 GHz.(see the attacht file) and the approximate formula for the impedance of a resonant patch is given by:
Zpatch = 90 (εr2 /(εr 1)) (L/W)^2
 How do I find the impedance of the patch??
I have done it like this:
Zpatch = 90 (εr^2 /(εr 1)) (L/W)^2
= 90( 1,258*10^10)^2 / ((1,258*10^10)1)*(18*10^3)/(25*10^3)
= 8,152*10^11
I think iam doing something wrong when i am calculating εr. Can you help??
This is my first tread, because i am new on this webside. I hope you can help me with this question:
This problem deals with the adaptation of a micro strip patch antenna with a 50 Ω microstrip line. (I am using the print: Rogers Duroid 5870, 31 milliinch).
patch given : W=25 mm, and l=18 mm.
a) For the patch i have too use the frequency f = 5.4 GHz.(see the attacht file) and the approximate formula for the impedance of a resonant patch is given by:
Zpatch = 90 (εr2 /(εr 1)) (L/W)^2
 How do I find the impedance of the patch??
I have done it like this:
Zpatch = 90 (εr^2 /(εr 1)) (L/W)^2
= 90( 1,258*10^10)^2 / ((1,258*10^10)1)*(18*10^3)/(25*10^3)
= 8,152*10^11
I think iam doing something wrong when i am calculating εr. Can you help??
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