Temperature Check For Out-Of-Band Emissions; Figure 17 Bandwidth Check At 25° Inside Temperature Chamber; Figure 18 Bandwidth Check At +85° Inside Temperarture Chamber - Infineon BGT24LTR11 Manual

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
Application Note page 26 of 32 V1.0
2021-03-31