Background. In microwave technology. of great interest is the creation of amplifiers and generators based on thin-layered longitudinal inhomogeneities in rectangular waveguides. which are an integral part of many functional devices in the microwave and EHF ranges. https://www.spidertattooz.com/RadioRA-3-Sunnata-Single-Pole-Multi-Location-Tap-Smart-Light-Switch-Neutral-Required-White/