首先需要对AWR1642芯片有一定的了解，包括天线设计，收发芯片的主要参数等。同时需要区分AWR1642和EVM板之间的区别。
可参考文档
- awr1642 datasheet
- AWR1642 Evaluation Module (AWR1642BOOST) Single-Chip mmWave Sensing Solution
主要的Features（想了解各个子系统，请参考awr1642 datasheet）
- FMCW transceiver
- Integrated PLL, transmitter, receiver, Baseband, and ADC
- 76- to 81-GHz coverage with 4 GHz available bandwidth
- Four receive channels
- Two transmit channels
- Ultra-accurate chirp (timing) engine based on fractional-N PLL
- TX power: 12 dBm
- RX noise figure:
- 14 dB (76 to 77 GHz)
- 15 dB (77 to 81 GHz)
- Phase noise a
