Dear Sir/Madam,
Since TI mmwave is all-in-one design, could customer design a IWR6843AOP PCB with 4 layers? Does TI have any guideline or recommendation if 4 layers PCB is workable with enough accuracy?
Customer also want to check on IWR6843AOP Radome (radar housing) requirement. I can only find the app note here: Radome Design (ti.com). Do you have any other recommendation and guide to go them through the Radome (radar housing) design?
E.g Does TI advice to use symmetrical RO-4350B core at layer 1 and layer 9 as shown in the picture below?

Best regards,
kpk
kpk