As mentioned in the introduction, this paper designs the H-plane T-junction to
reduce the peak power in the waveguide. The proposed H-plane T-junction is
shown in Fig. 3. and the return loss is shown in Fig. 4. The new shape of post is
located in the center of the waveguide. The location and the size of the post are
optimized. The radius of the edge is bigger than the radius of the center of the
post as Fig. 3. The proposed structure distributes the electric field evenly more
than type1 and type2.