Experimental investigation of frequency characteristics of the multistage slot membranes waveguide filters

Abstract

In this article, we present results of experimental investigation of amplitude-frequency characteristics (AFC) of the five-stage “filters with the waveguide-slot membranes” (FWSM) in the range of frequencies 5.4…8.5 GHz for six filters. Article shows the following trend change filter frequency response by increasing the width of the slots of the second and fourth membranes: decrease the quality factor, resonant frequency increase, reducing losses in the passband.