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Industry News / Transmission-Line Components

MDL Will Be Exhibiting a Pair of New WR90 Waveguide Rotary Joints

June 4, 2011
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At IMS 2011 in Baltimore, Microwave Development Labs (MDL) will be exhibiting a pair of new WR90 waveguide rotary joints in “U” and “F” configurations. MDL’s booth at the show is 2519.

In the F-type rotary joint, one inline arm is fixed to the housing and the other arm is free to rotate. In the U-type rotary joint, both waveguide ports are at a right angle to the rotational axis. The broadband rotary joints provide full frequency coverage from 8 to 12.4 GHz with loss insertion loss and low VSWR.

The maximum insertion loss across the band and insertion loss due to rotational effects (WOW) is 0.3 dB. The maximum VSWR from 8 to 8.5 GHz is 1.35:1, with maximum VSWR of only 1.20:1 across the remainder of the frequency range, from 8.5 to 12.4 GHz. The maximum VSWR due to rotational effects (WOW) is only 1.05:1.

The rugged WR 90 waveguide rotary joint is constructed with high-grade aluminum with a light-weight, corrosion-resistant iridite finish.


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