一种数字有源相控阵天线的测量方法

A New Method for Measuring Digital Active Phased Array Antenna

本文利用变型的编码算法,提出一种新方法来解决数字有源相控阵天线的测量问题。在相控阵天线的中场区内固定测量探头,利用数字有源相控阵天线激励幅度和相位可控的特点,对激励幅度和相位进行编码,快速恢复出初始激励,应用有源单元波瓣图,得出被测天线的辐射特性。通过两个数字有源相控阵天线模型的仿真结果,验证了该方法的正确性和高效性。

A new method is proposed to solve the measurement problem of digital active phased array an-tenna by using the modified coding algorithm. Fixing the probe in the mid-field of the phased array antenna, using the controllable excitation amplitude and phase of the digital active phased array antenna, the excitation amplitude and phase are coded, and the initial excitation is quickly re-covered. The radiation characteristics of the measured antenna are obtained by using the active element pattern and the initial excitation. The simulation results of two digital active phased array antenna models verify the correctness and efficiency of the proposed method.