SPRADP2 January   2025 AWR1843 , AWR2544 , AWR2944 , AWR2944P

 

  1.   1
  2.   Abstract
  3. 1Introduction
  4. 2ADAS Radar Market Trends and Evolution of Requirements
  5. 3AWR2E44P and AWR2944P - Performance, Processing, and Memory Enhancements
    1. 3.1 Signal-to-Noise Ratio (SNR) Improvement
    2. 3.2 TI 2nd Generation Launch on Package Technology (LOP)
    3. 3.3 Increased Computational Capacity
    4. 3.4 Expanded Memory for Radar Data Cube
    5. 3.5 1Gbps Ethernet Interface
    6. 3.6 Enhanced Security and Reliability
    7. 3.7 eBOM Optimization
  6. 4No Compromise on SW Scalability and Reusability
    1. 4.1 Software Development Kit
    2. 4.2 Microcontroller Abstraction Layer
    3. 4.3 mmWave DFP (Device Firmware Package)
    4. 4.4 TI Foundational Security
    5. 4.5 Safety Diagnostic Library
  7. 5AWR2E44P Evaluation and Measurements
  8. 6Summary
  9. 7Acknowledgments

TI 2nd Generation Launch on Package Technology (LOP)

TI’s LoP technology enables direct signal transmission from the package radiating element to the 3D antenna through a waveguide within the PCB, thereby enabling efficient electromagnetic signal transfer. AWR2E44P uses second generation optimized transitions which reduce the transmission distance to antenna elements, improving the RF performance and thermal management. Figure 3-5 shows second generation LoP technology’s use of double ridge waveguides (compared to oblong waveguides used in earlier generation). Double ridge waveguides enable approximately a 17% reduction in the transition size. This reduction is size enables improved board level reliability ensuring stable performance across PCB and antenna assembly variations. This more compact packaging also enables lower RF losses, and provides better spatial coverage by expanding the antenna’s field of view (FOV), which is important for enhanced detection capabilities.

AWR2944P, AWR2E44P Enhancements in TI second generation technologyFigure 3-5 Enhancements in TI second generation technology