Regarding RF ground at shunt Diode in Microstrip A 8 GHZ
时间：04-07
整理：3721RD
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Hello !
Actually m designing switched line phase shifter and switching using PIN diodes(series-shunt config) on 50Ω microstrip, with substrate ε=2.2, h=31mils.
For providing Bias to PIN diodes i have used Radial stub and λ/4 high impedance line.The biasing is such that At the series shunt configuration when series diode is ON, shunt diode OFF. or vice versa. I am simulating in ADS
The problem is that when the series diode is OFF & shunt diode is ON i want to ground the RF signal through Shunt diode path,So how the layout can be.
Looking for Reply.
Actually m designing switched line phase shifter and switching using PIN diodes(series-shunt config) on 50Ω microstrip, with substrate ε=2.2, h=31mils.
For providing Bias to PIN diodes i have used Radial stub and λ/4 high impedance line.The biasing is such that At the series shunt configuration when series diode is ON, shunt diode OFF. or vice versa. I am simulating in ADS
The problem is that when the series diode is OFF & shunt diode is ON i want to ground the RF signal through Shunt diode path,So how the layout can be.
Looking for Reply.
You should provide a sketch of your circuit. There are many possible topologies, and from your description we can not figure out what you are doing.