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CC1352R: How to design PCB antenna for BLE and SMA for RF

Part Number: CC1352R

Dear Experts,

Currently, we have started our own custom design board based on CC1352R, We have decided to make a 2.4GHZ PCB antenna for BLE, and a UFL connector for SUB1GHZ here i have doubts as follows:

1.CC1352R sensor Tag has the same design that we want, but here you use 0900PC15A0036E – RF Balun 862MHz ~ 928MHz, 2.4GHz ~ 2.5GHz  but if i refer to the CC1352R launch pad you prefer LC Diplexers, here what i need to do, which design i follow to achieve high efficiency of BLE and SUB-1 GHZ..

i am just a Prodigy in RF design..

Regards

Surya