The waveguide is used to transmit ultra-high frequency electromagnetic waves, through which the pulse signal can be sent to the destination of a very small loss; the size of the waveguide inner diameter of the waveguide tube is a kind of hollow, very smooth inner wall of the metal pipe or metal pipe; Due to the wavelength of the input signal varies; for centimeter wave and millimeter-wave radio communications. Radar navigation and other radio fields.
Waveguide technology was first used in the signal engineering of Xinpo Northeast Line, and the design scheme of ground installation was adopted. The first application of waveguide technology is the Beijing subway line 2 "blanking" reconstruction project signal system, the system uses the top of the tunnel installation design, and this is the world's first installation of the top of the tunnel design lines.
2008 Beijing Capital Airport Line across the board using waveguide ground installation design.
I wave technology companies to fill the domestic application of this gap in the area.