Hello,
I am designing a PIN diode SPDT switch, the operating frequency range is 8-12 GHz. Power requirement: upto 10 W CW. Insertion loss: 2.5 dB, Isolation: 50 dB and VSWR: 2:1
I am using a shunt design with quarter- wavelength spacing between the diodes. And I am adding another shunt on both the sides to give better isolation.
This is the first time I am designing a high power switch, I am having a tough time finding an RF inductor with that power limit to be used in the bias network. I know that the Irms and DC Resistance ratings determine the power (Pavg = (Irms)^2 * DCR). I am looking at air core RF inductors as it's also a high frequency application.
I hope I am on the right track. Any ideas on where I can find a RF inductor satisfying the above requirements? Also, what values of Irms and DCR should I be looking at?
I guess it's better if the DCR is low for better performance?!
I really appreciate any help.
Thanks.