Transitions from SIW to Various Transmission Lines for Substrate Integrated Circuits

The demands in the microwave and millimeter wave research community are of miniaturized and inexpensive system designs on Substrate Integrated Circuit (SIC) platform. However, a system may have components designed in separate technologies. Thus, in a system, to integrate components of various transmission technologies on a single substrate, their transitions are necessary. Substrate Integrated Waveguide (SIW) which is a planar analogy of the waveguide proves to be a promising SIC technology due to its properties of better power handling, low loss, light weight and easy implementation. Accordingly, various types of transitions from SIW to other transmission lines are studied.