Abstract
In this brief, a method to automatically optimize substrate integrated waveguide (SIW) couplers with different power-dividing ratios is proposed. In the proposed method, a cascade model is presented for the first time. In this cascade model, four-port SIW network is classified into two typical elements: coupling and phase difference. By cascading these typical elements in a certain order, SIW coupler with different power-dividing ratios can be achieved. The order of the basic elements can be automatically decided by using deep Q-network (DQN). A library is built to store the optimization results. From the library, SIW couplers with different power-dividing ratios can be obtained in seconds. To validate the proposed method, multiple four-port directional couplers with different power-dividing ratios are designed. Three directional couplers are fabricated and experimentally verified. Furthermore, this method is also promising for the design and optimization of other circuits.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call