Answer
To set up the Sterling LWB5+ Wi-Fi module with chip antenna for conducted RF power measurement, remove C28 then install L20.
After installing L20, there are two options to wire out the RF signal.
1. Soldering on a suitable SMA cable.
2. Soldering on a MHF4 connector then use “MHF4 to SMA” cable.
The terminators we usually use are produced by WOKEN.
6GHz 50 ohm Reverse SMA(M) 0.5W Terminator: https://www.woken.com.tw/en/index.php/products/get_product_content/7073
18GHz 2W SMA(M) 50 ohm Terminator: https://www.woken.com.tw/en/index.php/products/get_product_content/4968