The device which is used to pass and to stop certain frequencies in the hollow metal pipes known as waveguide is called waveguide filter.
It is designed to be interfaced with waveguide based systems.
The figure depicts waveguide filter with various screw posts required for tuning to obtain the best performance as needed.
Following parameters should be considered before selecting waveguide filter:
• Frequency Range
• Number of Sections
• Power Handling
• Dimension as per waveguide size
• Configuration: single components or diplexed
• Interface:Waveguide flange or connectorized type
RF Switch basics and applications along with manufacturers of RF switch refer following link:
For types of waveguide viz. rectangular & circular, waveguide propagation modes, impedance matching of waveguide read following waveguide tutorial.
waveguide basics tutorial
Manufacturers of waveguide components such as waveguide to coaxial adapter, coupler, flanges, gasket, tees, termination, shorts, isolator, circulator, horn antenna, attenuator, feed-thrus, bends, loads, twists, straights, pressure windows, transformers, sliding short circuits, fixed short circuits, sliding mismatches etc. visit following link.
Waveguide components manufacturer
Rectangular waveguide dimensions as per USA standard including frequency, broad dimension and narrow dimensions, visit following link.
Waveguide dimensions table