QuinStar Technology’s Series QRJ rotary joints are
available in standard circular waveguide sizes to cover frequencies from 11.6 to 150 GHz.
Each rotary joint consists of two circular waveguide sections mounted on ball bearings.
Connections to the guides are made using standard male and female circular flanges.
Precise alignment of the waveguide sections prevents spurious mode generation, and the
very small gap between abutting surfaces results in only a negligible loss in the TE01
circular mode. Amplitude variation with rotation is less than 0.2 dB and phase variation
is less than 2 degrees for all models.
The QRJ rotary
joints provide efficient energy transfer in radar antenna systems or in other applications
requiring for low phase variation, low insertion loss, and low return loss. |
They
are also useful in special laboratory test set-ups for the measurement of millimeter wave
parameters including phase variation in radiated fields. These rotary joints are designed
for use with (or to interface with) circular waveguides.
The QRJ rotary joint can also
be fitted with two Series QMT Mode
Transitions and a Series QMF Mode Filter to
provide a rotary joint assembly for rectangular waveguide applications.
Click here to see our newest rotary joints |
