Cascade LNA in RX path of FEM to expand the IOT product range

RF Solutions RF Low Noise Amplifiers
1

I am currently working on the RF design for an IoT-based product and have integrated the Qorvo QPL9547 (2x LNA) in the RX path along with the Skyworks FEM (SKY66122) to expand the range. As we are still in the design phase and finalizing the schematic and PCB layout, I would appreciate your technical guidance on the following points:

  1. Effectiveness of 2x LNA in Cascade: Does placing two high-linearity LNAs in a cascade configuration significantly enhance the RF range, or are there diminishing returns in terms of range improvement?
  2. Impact of IIP3 in Real-World Noise Environments: When two high-linearity LNAs are used together, how does their Input Third-Order Intercept Point (IIP3) influence overall performance in noisy RF conditions?