Design of self-checking power division network with high reliability

With the increasing complexity of electromagnetic environment in the modern battlefield, the multi-beam direction finding system requires higher and higher channel consistency of RF receiving front-end. It is necessary to carry out real-time amplitude correction or phase correction through self-checking power division network. In this paper, a self-checking power distribution network is proposed, and its reliability is improved by optimizing the switch design, and the correction accuracy is improved by introducing the difference between the working branch and the self-checking branch. The self-checking power division network can realize fast, efficient and real-time correction. And through correction, the amplitude consistency is ≤±0.5dB.