BS 9220 N003 is a series on detail specification for flat rectangular (8.33:1) rigid waveguide tubing. A rectangular waveguide is a hollow metal tube with a rectangular cross-section.
BS 9220 N003 specifies flat rectangular (8.33:1) rigid waveguide tubing. BS 9220 N003 also discusses the standard wall thickness of a flat rectangular (8.33:1) rigid waveguide tubing and how to measure it.
BS 9220 N003 on flat rectangular (8.33:1) rigid waveguide tubing specification is useful for:
The conducting walls of the waveguide confine the electromagnetic fields and thereby guide the electromagnetic wave. The rectangular waveguide is basically characterized by its dimensions i.e., length a, and breadth b. The standard ratio of inside width to inside height is in principle 8.33: 1. For some types of waveguides given in BS 9220 N003, this ratio has not been observed because a different value of the ratio was already in extensive use.
Deviations for the inside width and height are in principle ± 1/1000 of the internal width. Orders for waveguides covered by BS 9220 N003 contain the information, in accordance with the requirements which include the BS number of this detailed specification, reference code and piece length. Using BS 9220 N003 you can understand flat rectangular (8.33:1) rigid waveguide tubing.