Pressurized straight waveguide refers to a standard rectangular or circular straight waveguide filled with dry, clean gas (usually dry air or nitrogen). It is not a new type of waveguide, but a working state and protective method applied to conventional waveguides. Its core purposes are moisture resistance, dust prevention, improved power capacity, and stable electrical performance.
Main Structure
It is identical to a standard straight waveguide, consisting of a metal (aluminum / copper) rectangular tube with airtight flanges at both ends.
The key differences are that the entire waveguide system is fully hermetically sealed, with sealing gaskets (rubber or metal) installed at the flanges on both ends.
An inflation valve is mounted on the waveguide wall for connecting to a gas source.