Single-cut Far-Field Antenna Radiation Pattern Reconstruction Accuracy Analysis in Compact Anechoic Chamber Setup

In production testing, it is of importance to measure the key radiation parameters an antenna under test (AUT), e.g., main beam peak and direction, sidelobes, null depth direction in a cost-effective setup with short measurement time. As result, practical setups are often compact equipped only few probes (or probe locations). However, these system limitations would introduce errors for testing. This problem has become even more pronounced 5G radios due utilization large-scale configurations high frequency bands. Spherical near-field measurements nowadays accurate mature technique characterizing AUTs, which however, necessitates full spherical acquisition, leading long Singlecut near-to-far-field transformation promising strategy since most AUT available single-cut pattern requires much reduced this work, simple flexible scheme proposed evaluate introduced by far-field (FF) reconstruction, where data can be easily generated modified according multi-probe anechoic chamber setups, distance, truncation range, sampling interval. The reconstructed FF obtained using commercial tool, SNIFT. numerically validated via comparing reference 4 × 8 uniform planar array composed ideal Hertzian dipoles pattern. With scheme, impact on reconstruction accuracy analyzed.