It is a wideband LNA (Bandwidth~33%). The cascode architecture with source inductive degeneration is just suitable for narrowband. Moreover, the degeneration indutor will be too large at these frequencies and can not be made onchip.
Hello xuebi;
I think that you should see the microwave amplifier books, like the Gonzalez and/or Vendelin. Also read application notes published by companies like Agilent and Minicircuits. Also simulate your project by a microwave simulating software.