# calculate capacitance of a structure in CST?

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#### kamiar.t

##### Member level 1
how can calculate capacitance of a antenna structure?
which kind of port should be used for it?

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#### redcrystalline

hi
you could define 4 port at each end and there you could obtain Y=[y11 y12 y21 y22] matrix .
after this you could obtain capacitace easily for each frequency.
but is important to notice this capacitance is frequency dependent.

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