Method for improving effective angle power by using digital beam deflection

Abstract

The invention relates to a method for improving effective angle power by using digital beam deflection, which achieves the purpose of beam deflection by simultaneously adjusting phase configurators and power configurators of two transmitting antenna channels of a microwave integrated circuit and simultaneously transmitting configuration through two transmitting antennas respectively. Therefore, the power of the effective angle is improved, and the ranging distance is increased.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a method for improving effective angle power by utilizing digital beam deflection. Background technique [0002] The methods for improving the effective angle power of existing millimeter-wave radars are as follows: [0003] 1. Adjust the phase angle of the power divider and adjust the amplitude distribution of the power divider through a single transmission channel multi-array antenna for beam deflection, and cooperate with the receiving antenna to enhance the effective angle gain and improve the effective angle transmit power; [0004] 2. Beam deflection is carried out through a single transmission channel multi-array antenna and an asymmetric feeder network, thereby increasing the effective angle power; [0005] 3. Use the coupling vibrator and change the load of the coupling vibrator to pull the antenna pattern in the near field; [0006] 4. Increase the antenna bandwidth, an...

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Problems solved by technology

[0008] 1. When encountering the deviation of the angle of the radar installed on the vehicle, when it reaches a certain deviation, the deflection angle of the above antenna structure is not within the range of this installation angle, resulting in the strongest antenna power angle deviating from the effective angle of the detection direction, resulting in a shorter detection distance , so it is necessary to adjust the installation angle or re-change the deflection angle of the antenna, which greatly reduces the flexibility and increases the installation and adaptation time of the angle radar and the car;

[0009] 2. The above hardware antenna structure and feeder network structure all need to occupy the board area, thus increasing the board area. Due to the special high-frequency board material, the price is extremely high, and increasing the board area means increasing the cost;

[0010] 3. Since the millimeter wave works in the high-frequency band, reaching 77Ghz, when the processing tolerance control of the above hardware antenna structure and feeder network structure is improper, it will directly lead to distortion of the entire radar pattern, power map, etc., resulting in the overall performance of the radar reaching Less than required, consistency is very difficult to control

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