Recent Advances in Theory and Applications of Substrate-Integrated Waveguides: A Review

摘要

The use of substrate integrated waveguides (SIW) for microwave and millimeterrnwave integrated components has increased dramatically over the last decade. Theyrnmimic the performance of conventional metallic waveguides and they are fabricated usingrnprinted circuit boards using the top and bottom metallization with two rows of vias formingrnthe side walls. This creates a low profile, compact, and light weight alternative to conventionalrnmetallic waveguides, and they allow a direct interconnection with printed circuitrnboards and active components. This article reviews the fundamental theory, documents thernresearch that has been performed over the past decade, and summarizes progress up to thernrecent state-of-the-art including novel SIW structures for passive circuits and antennas asrnwell as new applications for reconfigurable and printed circuits using SIW technology.