Radar antenna

The utility model provides a radar antenna comprising a plurality of radiation units used for emitting electromagnetic waves; the microstrip unit is respectively connected with the plurality of radiation units and the signal source and is used for transmitting the electromagnetic waves provided by the signal source to each radiation unit; and the phase adjusting unit is connected with the micro-strip unit and is used for adjusting the phase of the electromagnetic waves transmitted by the micro-strip unit. According to the radar antenna provided by the utility model, the phase of the emitted electromagnetic wave can be adjusted so as to improve the gain of the radar antenna; and the radar antenna can be prevented from being remanufactured, so that the manufacturing cost is reduced. 本实用新型提供一种雷达天线，其包括：多个辐射单元，辐射单元用于发射电磁波；微带单元，微带单元分别与多个辐射单元和信号源连接，用于将由信号源提供的电磁波传输至各个辐射单元中；以及相位调节单元，相位调节单元与微带单元连接，用于调节微带单元传输的电磁波的相位。本实用新型提供的雷达天线，其能够调节发射的电磁波的相位，以提高雷达天线的增益；并且能够避免对雷达天线进行重新制作，进而降低制造成本。