Waveguide Rotary Joint – Crucial Component for Radar Applications

Waveguide rotary joint is used to connect two different types of RF waveguides in a communication system. With the use of a waveguide rotary joint, a free rotational movement can be achieved without degrading the performance of microwave RF signals.

A waveguide rotary joint component is an electro-mechanical component used to transmit microwave signals-radio bands or a pulse from other spectrum-from a stationary line to a rotating line or vice versa.

The needed electrical continuity in a waveguide rotary joint is achieved by using λ/4-chokes which eliminates metal contacts that are susceptible to metal fatigue and wear and tear.

A waveguide rotary joint can have both the waveguide ports a right angle to the rotational axis, or have a “U-style”, “L-style” or an “I-style” configuration depending upon the modules which are available across the frequency bands.

Most waveguide rotary joint use rectangular, circular, or elliptical cross-section made of aluminum, brass, bronze, copper, silver, stainless steel and metallic alloys.

Waveguide rotary joint is extensively used in airport surveillance radars, guided missile technology, and other radar applications.

Its rugged make, minimum phase WOW, stable phase linearity make a waveguide rotary joint a perfect fit for high power applications. These can also be which can also be custom-made for a specific design/application.