A 60 GHz Planar Diplexer Based on Substrate Integrated Waveguide Technology

Table 1

Summary of SIW design parameters at 60 GHz frequency band.

Parameter	Symbol	Value	Unit
Dielectric substrate	RT/duroid 5880 (𝜀𝑟=2.2; tan𝛿=0.0009; ℎ=0.508)
Pitch via	𝑝𝑣	0.35	mm
Via diameter	𝑑𝑣	0.2	mm
SIW width	𝛼SIW	2.8	mm
SIW effective width	𝛼eff	2.678	mm