Direct and Exact Synthesis: Controlling the Microwaves by Means of Synthesized Passive Components with Smooth Profiles

Novel synthesized passive components in microstrip technology, rectangular waveguide technology, and microstrip coupled-line technology have been successfully designed, easily fabricated, and accurately tested for very different applications. A palette of novel microwave synthesis techniques has been surveyed and discussed in this article, confirming that they represent a powerful tool set for the design of microwave components for the emerging and demanding needs in the fields of wireless applications, biomedical engineering, and satellite communications.