Site Overview
The 1GHz–60GHz microwave anechoic chamber, constructed by Hunan Aerospace Huanyu Communication Technology Co., Ltd., was commissioned in November 2017. The test site's transmit and receive chains primarily consist of high-performance vector network analyzers, high-performance RF amplifiers, frequency extension modules, harmonic mixers, U-band low-noise amplifiers, power amplifiers, and RTC. This facility offers advantages such as high measurement accuracy, excellent cross-polarization performance, and rapid testing speed. The system is self-contained, with shared instruments across different frequency bands and testing methods. By switching probes (or standard gain horns), connecting cables, and adapters for specific frequency bands, it supports comprehensive measurements of various antenna types and parameters.
Key Technical Specifications
Chamber Dimensions: Length × Width × Height (15m × 10m × 7m)
Operating Frequency: 1–60GHz
Capable of both planar near-field and far-field testing.
Planar near-field effective scanning range: 5.4m × 4.8m (AUT aperture up to 3m).
Far-field maximum test distance: 12m.
System operating modes: Transmit and receive.
Adjustable intermediate frequency (IF) bandwidth during testing.
Gain measurement accuracy: 0.2dB@30dB.
Sidelobe measurement accuracy: ±2dB@-35dB.
Cross-polarization measurement accuracy: ±2dB@-35dB.
Beam pointing accuracy: 2% of the 3dB beamwidth.
Typical Test Items
Antenna radiation patterns, directivity coefficient, gain, antenna efficiency, axial ratio, cross-polarization, beamwidth, sidelobe level, beam pointing, null depth, polarization isolation, and polarization rotation analysis.
