de ui eg av W NT tube BE

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Waveguides are used in a variety of applications to carry radio frequency energy from one point to another. In their broadest terms a waveguide is described as a system of material that is designed to confine electromagnetic waves in a direction defined by its physical boundaries. This definition gives a very broad view of waveguides, but indicates that waveguide theory can be applied in a number of areas and in a variety of different ways.

Different types of fibers: A- straight line, B, C curved, D - Twisted and G - waveguide with variable cross section and E - flexible waveguide

Depending on the design requirements and destination waveguide tube are right-linear, curved, twisted

Types of waveguide bend There are several ways in which waveguide bends can be accomplished. They may be used according to the applications and the requirements. -Waveguide E bend -Waveguide H bend

Most proprietary waveguide bends are common angles 90° waveguide bends are the most common by far.

Waveguide E bend This form of waveguide bend is called an E bend because it distorts or changes the electric field to enable the waveguide to be bent in the required direction. To prevent reflections this waveguide bend must have a radius greater than two wavelengths.

Waveguide H bend This form of waveguide bend is very similar to the E bend, except that it distorts the H or magnetic field. It creates the bend around the thinner side of the waveguide As with the E bend, this form of waveguide bend must also have a radius greater than 2 wavelengths to prevent undue reflections and disturbance of the field.

Getting smooth bends in two ways: • 1) with a filling of flexible waveguide tube, • 2) flexible with no padding. In the method used in the bending of the work piece as a placeholder, you can use bulk and plastic materials, metals and alloys with low melting point, elastic steel plates, swivel mandrel; hard swage.

Scheme flexible waveguide tube in closed die with a constant matrix stamped with guide blades

If bent waveguide tube at 180 ° using closed stamps or stamps with guide blades can provide high precision springing from the corner of the work piece. Therefore, it is expedient to use the stamp bending blades with wedge

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MAKING BENT Waveguide rectangular tube.pptx

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