Tool/software: Code Composer Studio
Hello TI engineers, we are using IWR1642 to test the elevation pattern. The radar board is designed by ourselves. The chip uses IWR1642, but when we test the elevation pattern, we have a score of -10 °. What is the cause of the fork depression? When we designed the antenna, there were two columns of virtual arrays on both sides of the TX0 and TX1 transmitting antennas. After we tried to remove the virtual array, the position of the bifurcation moved from -10 ° to -3 °. What could cause the bifurcation of our elevation? Below is a picture of our elevation pattern. thank you very much.
