Broadband matching !

hello all,,

I am desiging an amplifier and having problem whilei am doing broadband matching 3-5 GHZ, any idea how to deal with this problem and which things to take into account for this purpose !

I am using cascoded amplifier!

Please ....

You are being plagued by the Fano limit. This states that the reactance of the load sets the limits of the reflection coefficient over the desired bandwidth.