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MilliBox is an antenna and radar OTA test system for millimeter-wave and sub-THz scenarios. Its core products include desktop modular anechoic chambers, 1/2/3-axis antenna positioners, application-specific configuration packages, and accessories. It is not a typical pure software developer tool, but rather an RF test hardware platform with programmable control capabilities, suited to teams that need to run high-frequency antenna pattern, OTA metric, and radar performance tests in the lab.
Its main strength is modularity. The chamber is built from combinations of 24-inch and 30-inch cube modules and can be expanded according to far-field distance requirements. The product line covers direct far-field measurements and CATR configurations, with stated absorber performance from 18GHz to 330GHz. For positioning, MilliBox offers multiple formats such as HV, spherical roll, and azimuth-only positioners, with resolution below 0.1 degrees and USB control. The software controller is delivered as Python source code, can run on any OS platform, and outputs CSV data for plotting 3D radiation patterns, which is friendly to research users and labs that need secondary development. Its FST feature enables on-the-fly acquisition through a physical real-time link between the positioner and the VNA, and claims to reduce 3D scan acquisition time by up to 10x in VNA scenarios.
The website does not publish specific pricing and only provides Get a Quote / RFQ options, while repeatedly emphasizing that the solution is affordable and cost-effective. In terms of ecosystem, MilliBox can connect to most instruments on the market. The text mentions VNAs, spectrum analyzers, frequency extenders, and other equipment, and also provides the Build Your MilliBox web app, product guides, and a video library to help with configuration selection.
The advantages are local desktop deployment, 24/7 availability, flexible configurations, modifiable software, and suitability for quickly reproducing experimental results. Compared with external test facilities, it can reduce queueing and sample-shipping costs. The limitations are that pricing, delivery terms, warranty, and payment methods are not disclosed; delivery of Python source code does not necessarily mean open source, and the license and long-term maintenance mechanism are unknown; API/SDK documentation is also not reflected in the available text.
MilliBox is suitable for millimeter-wave radar, 5G/6G, satellite communications, UWB, academic research, and defense-related R&D teams, especially laboratories that already have instruments such as VNAs or spectrum analyzers and want to build compact OTA test capabilities in-house. Information about access and procurement support from China is insufficient; network accessibility, payment, customs clearance, and after-sales support all need to be confirmed separately. Alternatives include traditional large anechoic chambers, external test laboratories, RF test ecosystems from Keysight/Rohde & Schwarz, or self-built DIY anechoic chambers and positioning platforms.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on millibox.org official site.
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