PCB improvements #5
Description
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Use a eSIM or SoftSim: The current nano-sim takes a lot of space, it needs the ESD protection IC, the SIM tray and the SIM card itself, not only adding to the space but also the cost. Nordic released their plans to support SoftSim in Q1 of 2024 so that's promising. If SoftSim doesn't work; an eSIM is a no brainer for the next revision.
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Consolidating the antennas: The nrf-9160 shares it's radio front-end between the GPS and LTE; meaning the only one of the modules can be active. Hence, we can consolidate the antenna into one and use a RF switch to connect the antenna using appropriate matching network to LTE/GPS as appropriate.
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Replace the DWM3001C: The Qorvo UWB module is expensive and big. This will be replaced with now available Type2AB. This reduces the cost by half and the size as well. Win win.
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SWD programming: investigate if it is possible to route it through USB instead
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Magnetic inductive charging: investigate.