Modify the antennas' feedlines for a 1.1mm nominal thickness board using a relat
ive permittivity of 4.1~4.11 The H parameter in the calculations was +0.21mm greater than the H used in the p rototype calculations (1.1mm thick board instead of 0.89mm thick) A DK value of 4.11 was used for the GNSS and WWAN antennae feedlines and a DK of 4.1 was used for the Wi-Fi/BT feedlines since the operating frequency of the GNSS and WWAN is generally a bit lower than Wi-Fi/BT. The NANYA NP-180TL spec sheet is also included. The specific prepreg/core/substrate/dielectric used is NANYA NP-180**TL** which has a DK specified as 4.1-4.3 @ 1GHz.
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