Compact microwave rotary joint from Link Microtek has three X-band channels
Designed and manufactured at Link Microtek’s UK facility, the AMCORJD-3 is a three-channel rotary joint for X-band radar systems. It joins the company’s existing range of microwave rotary joints. One of the three X-band channels is used for transmit and the others for receive signals in radar systems for coastal/border surveillance or critical infrastructure protection.
The AMCORJD-3 enables microwave signals to be fed to or from a compact radar antenna rotating continuously at speeds in excess of 60rpm and typically exposed to harsh environmental conditions such as wind, rain and salt spray. It was also designed to fit in the same space as the company’s earlier, two-channel version.
Both channels cover the frequency range 8.5 to 9.5GHz and can handle average microwave power in excess of 50W and peak powers of over 200W. In terms of microwave performance, maximum insertion loss is only 1.2dB, maximum VSWR (voltage standing wave ratio) is 1.5:1 and isolation is 80dB.
To satisfy requirements for long life and continuous operation, the robust rotary joint uses a non-contacting design, so the only parts subject to wear are the bearings. The AMCORJD-3 is fabricated from lightweight aluminium with a Surtec finish and incorporates IP65 sealing to protect it from the ingress of moisture and dust. There are N-type connectors on the rotating side and SMA connectors on the fixed side. The rotary joint has overall dimensions of 84 x 150mm, excluding the connectors and bulkhead mounting flange. Other rotary-joint configurations and sizes can be supplied on request and customised to suit specific radar antenna requirements.
Visit Link Microtek at European Microwave Week (EuMW) at the
ExCeL London Exhibition & Conference Centre from 04 to 06 April 2022. Stand 119
