Design of Ka-band substrate integrated waveguide power dividers/combiners

In this paper, two classes of Ka-band Substrate Integrated Waveguide(SIW) power divider are presented and studied. The advantages of the SIW technique are its low profile, low-lost, mass-productive, ease of fabrication and fully integrated with planar circuits. All the modules are designed to be operated in a wide frequency range. The Y-junction shows a bandwidth of 29.4%.