System Radiation Characteristics - Infineon BGT60ATR24C Application Note

BGT60ATR24C ES shield
XENSIV™ 60 GHz radar system platform
Measurement results
6.2

System radiation characteristics

The following graphs show the radiation characteristics of the complete board. The single TX channels have
been used as signal sources. A corner reflector with 1 m² of radar cross section (RCS) has been used as a target.
The single RX channels have been used as receivers. The RF shield was turned in 2° steps over the vertical and
horizontal cut planes. Figure 21 shows the definition of these planes. Frequency-modulated continuous wave
(FMCW) chirps of 500 MHz bandwidth were used as test signals. Start frequencies were changed in 500 MHz
steps from 58 GHz to 62 GHz.
The received amplitudes were normalized to the peak value of the respective cut plane considering data from
every RX channel.
The plots show that the system works well over the BGT60ATR24C MMIC's entire frequency range. The antennas
will still need some fine tuning, especially RX2.
Figure 21 Horizontal and vertical cut planes
Application note 14 Revision 1.10
2023-02-14