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Need help on spdt pin diode switch bandwidth problem

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usman_mahfooz

usman_mahfooz

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I have designed a SPDT switch on ADS. The problem is when taking practical results the bandwidth comes out to be only 100 MHz. But in simulation it is 500 MHz. I am using a shunt Switch configuration and using equivalent models for PIN DIDOES.Design file is attached. Kindly comment for increasing bandwidth
 

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  • Sp2t_FINAL_shunt_layout.zip
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There are so many errors in your design. Such as in Schematic, your substrate Er=2.33, but in layout, the substrate is 9.6. And there are so many capacitors don't link to GND. You should carefully read about handbooks.
Good luck.
 

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