help to draw a graph between S11db parameter and frequency
时间：04-08
整理：3721RD
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i have to draw a graph between S11db parameter and frequency
any one can give me the formula by which i can make the graph on matlab
how can i find the relation between the s11[db] and frequency
while i have 2x2 patch antenna array at 2.45 ghz using FR4 substrate
[Er=4.4, thickness=1.58mm,losstangent=0.02 ] each element
element of the antenna array is fed by using [lemda/4] transformer microstirp lines
any one can give me the formula by which i can make the graph on matlab
how can i find the relation between the s11[db] and frequency
while i have 2x2 patch antenna array at 2.45 ghz using FR4 substrate
[Er=4.4, thickness=1.58mm,losstangent=0.02 ] each element
element of the antenna array is fed by using [lemda/4] transformer microstirp lines
this task is very simple by doing frequency sweep using EM simulator
the S11 depend of ur circuit , and of the characteristic of the antenna
khouly