Application Note
page 26 of 32
V1.0
2021-03-31
Distance2GoL (Software-Controlled FMCW) low-power radar shield using
BGT24LTR11 for range detection and human tracking
Measurement results
7.2
Temperature check for out-of-band emissions
The Distance2GoL demo board is also tested inside a temperature chamber for the bandwidth and out of band
emissions at the temperature limits of -40°, 25° and 85°C. Markers 1 and 2 are set to 24.000 GHz and 24.250 GHz
(ISM band) on the spectrum analyzer. As seen in Figure 17Figure 18 and Figure 19, the frequencies are always
inside the ISM band.
Figure 17
Bandwidth check at 25° inside temperature chamber
Figure 18
Bandwidth check at +85° inside temperature chamber
