Helo, I have ISP1907 for BLE AoA.
In my understanding, the antenna spacing should be half of wavelength, in case of BLE, it would be 2.4GHz thus the spacing should be 6.25cm.
However, the ISP1907 that I have, has antenna spacing of 5cm.
what makes it different with standard BLE ? or is it using different carrier frequency than regular BLE?\
Thank you.