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how can I increase lumped port in y-direction , it is sheet in x-z axis ?
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substrate material-->FR_4
ground material--> copper
microstrip and stubs --->copper
radiation box --> vacuum
lumped port-->sheet
ah , yes, I have ground substrate in the design
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I perform the simulation now , but I do not know , what is the reason for resulting this curve ?
Hi ,
I have designed low pass microwave filter with cut off frequency of 3.2 GHZ , I have problem with the result from simulation(S21) .
please can anyone help me ?
I want to know steps of working of this circuit , but not clarification in links as I searched too much and I get the overall point ,but I need details ,as why does C1 charges and discharges ,the importance of the parallel capacitor of 100 uf and what is after the transistor is in cut-off region ?
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