Waveguide rotary joint
 | This article may be too technical for most readers to understand. (December 2016) |
Waveguide rotary joint are required in PSR-, SSR- and/or IFF-Radar sensors to couple the RF-signals that are transmitted by PSR-, SSR- and/or IFF-Radar sensors transmitter and the from the continiously by 360° rotating PSR-, SSR- and/or IFF-Radar-sensors-antennas.The RF-signals can be provided to the Waveguide rotary joint either by waveguides or coaxial-cables.
Depending on the required number on channels, e.g. for different Antennadiagrams, waveguide rotary joints can have up to nine channels.[1]
Waveguide rotary joints are used in PSR-, SSR- and/or IFF-Radar sensors to connect two different types of RF waveguides. Because coaxial parts are symmetrical in ø direction, free rotation without performance degradation is accomplished. In the rotating part, electrical continuity is achieved by λ/4-chokes eliminating metal contacts. The Rotary Joints can have both waveguide ports at a right angle to the rotational axis, "U-style", one waveguide port at a right angle and one in line, "L-style" or both waveguide ports in line. "I-style". Waveguide Rotary Joint modules are available for all frequency bands. [2] Common materials for waveguide rotary joints include aluminum, brass, bronze, copper, and silver.[3]
References
[edit]- ^ SPINNER, Air Traffic Control, Superior Rotary Joints for ATC, Edition C.1/2023 (PDF).
- ^ www.ecplaza.net "WAVEGUIDE ROTARY JOINTS"
- ^ Zhiqiang Zhang, Kaibin Xue, Zibing Weng (2022). "A High-Power Radar Rotary Joint". Frontiers in Physics. 10. doi:10.3389/fphy.2022.948570.
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