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BAP64Q - Quad PIN diode attenuator

Question asked by Rohith K on May 22, 2020
Latest reply on May 27, 2020 by LPP

Dear Team,

 

In datasheet of BAP64Q Application circuit states that shunt diodes are biased with 0.75 Vdc.  But if i try to simulate that circuit i get very poor return loss and attenuation is around 29dB though i very series Pin diode current from 1mA to 100mA.

 

Since its PI attenuator configuration both series and shunt Impedance need to be varied to attain optimum attenuation.

 

Kindly suggest a solution to solve this issue.

 

Regards,

Rohith K 

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