microstrip antenna with air gap design

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terrycool

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Pls, forum members i recently came across a paper online on how to optimize rectangular microstrip antenna using air gap technique. I have tried for more than two weeks without ant success, the design is in two phases. the first one is without air gap which i have uploaded the HFSS design here while i have no idea on how to design the second phase (ie with air gap).Iam very excited for your help.
 

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hi terrycool,
please state your specific question in order others to help. your question is too general.

i dont have experience in HFSS. i have only dealt with ADS and CST before.
 
thanks very much sir for your concern, i have read the book and it added my knowledge greatly. my main concern is the use of the software. this are my parameters; W=42mm, L=40mm, h=1.6mm, mt=0.07, feed position = 21,8.93,0 edge impedance = 120.11.
 

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