• Eric Kuzmenko's avatar
    Modify the antennas' feedlines for a 1.1mm nominal thickness board using a relat · d30c5fd1
    Eric Kuzmenko authored
    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.
ACM4-5036-A1-CC-S.kicad_mod 7.85 KB