A Review on SIW and Its Applications to Microwave Components

Substrate-integrated waveguide (SIW) is a modern day (21st century) transmission line that has recently been developed. This technology introduced new possibilities to the design of efficient circuits and components operating in radio frequency (RF) microwave spectrum. Microstrip are very good for low applications but ineffective at extreme frequencies, involve rigorous fabrication concessions implementation RF, microwave, millimeter-wave components. due wavelengths being short higher frequencies. Waveguide devices, on other hand, ideal systems, costly, hard fabricate, challenging integrate with planar neighborhood. SIW connects gap existed between conventional air-filled rectangular technologies including microstrip. study explores current advancements opportunities RF devices filters, multiplexers (diplexers triplexers), power dividers/combiners, antennas, sensors communication systems.