Design and Experiment of the Simple･loop Hybrid Ring

The simple-loop hybrid ring used in the microwave band has the simplest structure among various kinds of hybrid circuits. But its electric characteristics are worse than those of other hybrid circuits. In our study，it is shown that we have designed and made simple-loop hybrid rings and have measured the hybrid characteristics of them. These measured values are compared with the theoretical ones derived by using the image parameter theory， and causes of the differences between them are considered