Dual Junction Isolator can also be called multi-Junction Isolator, It is composed of two or more single-Junction Isolator, It can also be divided into Dual Junction/multi-Junction Coaxial Isolator and Dual Junction/multi-Junction Drop in Isolator according to different connection forms. From the point of view of performance, the Isolation of the double section isolator is superimposed, so it has the characteristics of high isolation, so Dual Junction Isolator can also be called a high isolation Isolator. So in the application, if you need to have a large isolation, you can choose a Dual Junction Isolator. As shown in Figure 1.
The connection form can be divided into N, SMA, TAB, As shown in Figure 2.