Systematic analysis of the signal integrity performance of surface integrated waveguide structures (SIWs)

In this work a systematic analysis of the signal integrity performance of substrate integrated waveguide structures (SIW) is reported. It is numerically demonstrated how the transmission of very high bit rate (within the frequency range 30-80GHz) can be successfully achieved by using this type of structure and an equivalent stripline model is used as reference for the purpose. The numerical model of the SIW is validated by measured data available in literature. An extension of the single SIW structure is proposed: it consists of two adjacent single ended SIW and it is named 2-SIW. Crosstalk analysis and transmitting performance for the 2-SIW structure and a new configuration denoted inverted-U is finally carried out.