How to bias a pHEMT cascode amplifier?

[rf_practitioner]

I would like to design an LNA and it looks like i am stuck with a pHEMT model transistor in ads. I wanted to use an e-pHEMT but i have not found any models so I think it may be easier to move forward with what already comes built into ads, a pHEMT. I realize that the device needs to be biased with a negative voltage. Usually a cascode transistor is tied to Vdd. With pHEMT, this wouldn't work as the bias needs to be negative. How would I bias the pHEMT cascode transistor?
I have not been able to find any information regarding this oneline.

 

[D.A.(Tony)Stewart]

This dual LNA has a design but no details how it was done.

TQL9066 - Qorvo

www.qorvo.com

 

[rf_practitioner]

This dual LNA has a design but no details how it was done.

Thanks. This didn't help but I appreciate that you tried.

 

[ahsrabrifat]

You may see these:

Understanding biasing circuit for RF PHEMT transistor

I am looking into the datasheet of a SAV-541+ E-PHEMT RF transistor, and looking at the recommended biasing circuit, im not sure how the drain current is determined. Above is the picture from the

electronics.stackexchange.com

https://ieeexplore.ieee.org/document/6694909/