Full-band designs for V-, E- and W-Band rotary joints—covering the frequency ranges from 50 to 75, 60 to 90 and 75 to 110 GHz, respectively—have been added to Spinner’s rotary joint portfolio, which initially covered narrowband W-Band. The new rotary joint models are BN 636281 (V-Band), BN 636282 (E-Band) and BN 636283 (W-Band).
To develop the new models, Spinner’s challenge was to provide outstanding insertion loss and VSWR performance across the full bands. The result: all three rotary joints typically have a VSWR better than 1.5 and an insertion loss below 1 dB. Another design goal was to offer excellent stability with rotation; over their full frequency bands, insertion loss variation with rotation is less than 0.2 dB, phase variation typically less than 2 degrees. SpinneR says that the three new rotary joint types are the only ones on the market that can provide this performance over their full waveguide bands.
To complement the rotary joints in high-end test applications requiring very low insertion loss, high stability and good VSWR, flexible dielectric waveguides for E-Band (BN 533659) and W-Band (BN 533660) are available in standard lengths of 30, 60 and 90 cm, and they can easily be reconfigured to custom lengths. The actual transmission line is made from a polymer plastic material. This reduces weight and results in extreme flexibility, very low transmission loss and high stability, offering a high performance alternative to a traditional flexible waveguide section or test cable. These devices are ideal for antenna test chambers, material testing and general measurement applications.