The Art of Substrate-Integrated-Waveguide Power Dividers

Substrate-integrated-waveguide (SIW) technology can eliminate the limitations associated with conventional rectangular waveguides, i.e., bulky structures and production complexity at higher frequencies. Moreover, SIW replaces microstrip eliminating drawback of excessive radiation leakage power dividers are key elements in antenna array synthesis. A divider’s design procedures more complicated than dividers. However, no comprehensive review guidelines substrate-integrated-waveguide has been reported. In this paper, different types based on their configurations, functionality, operating principles analyzed some recommendations made for selection purposes. guideline is given paper through a comparative study T- Y-type junctions. These parameters, including insertion loss, isolation, co-phase bandwidth, return loss phase balancing. This provides valuable information selecting designing best possible configuration specific applications microwave millimeter-wave frequency ranges. case Ku-band divider performed soil moisture radiometer array.