Study On Fast Measurement Method Of Phased Array Antenna

Antenna measurement has always been a key topic in the field of antennas. In this paper, based on a linear mathematic model a new method in measuring phased array antenna quickly is described. The pattern and gain in any disposing-phase status can be expressed by this model. With this method, the receiving signal of the probe is measured with a fixed distance of phased array antenna and the probe. Experimental data is disposed by mathematic algorithm, thus amplitude and phase in each channel is determined in any disposing-phases status. All the patterns can be recovered only through a test result. Some special controls can be found hi all the possible disposing-phases to simplify the solution of the linear model, thus increasing the research efficiency. Simulation of this method is made to prove the validity of the method. With this new technology, the research time has been greatly reduced, and the environment requirements are not so strict, thus making this method quite practical and useful in effect.