MilliBox continues to show innovation for IMS2025 in San Francisco Calif., from June 15 to June 20, 2025.

MilliBox demonstrates the first 3D OTA live capture of a J-Band antenna array at 330 GHz with MBX32CTR. The test setup consists of a 5.5 ft MBX32 chamber and a GIM04H-300E 3D positioner. The chamber is equipped with a parabolic reflector and feed horn designed by Eravant, eliminating the far field distance constraints. A vector network analyzer from Copper Mountain Technologies used with MilliBox software makes high resolution 3D radiation pattern data acquisition, through the WR-03 frequency extenders provided by Eravant.

The antenna under test designed by Nokia Bell Labs is an antenna array on a single-layer Glass substrate powered by Mosaic Microsystems and Samtec Glass Core Technology for internal research purposes laying the groundwork for 6G applications. The antenna array is an 8-element Antipodal Vivaldi Array covering the full J-band from 220 – 330 GHz. This demonstration can be found at MilliBox booth 226.

“This never seen before demonstration pushes design and test capabilities at the farthest frontier of the mmWave spectrum. It is not that it is only feasible, it shows that it is becoming accessible to many engineers who are developing next generation radio applications” says Michael Holyoak Department Head of EM Systems & Integration at Nokia Bell Labs.