Mid-Field Calibration Technology on the Phased Array Antenna

Chen, Zhenzhong; Shu, Rong; Kong, Depeng

doi:10.1016/j.proeng.2012.01.082

Cited by 1 publication

(1 citation statement)

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“…The PWG operates at 2.6 GHz with a dimension of 1m × 1.124m. Open-ended waveguide feed is used for the PWG element with a dimension of 72mm × 34mm and each element's amplitude and phase are well calibrated by face-to-face calibration method [18], [19] and mid-field calibration method [20], respectively. This PWG has a uniform configuration along y axis, with an element spacing 86.5mm, but a non-uniform configuration in the x axis.…”

Section: Numerical Resultsmentioning

confidence: 99%

Robust Plane Wave Generator Design in Small Anechoic Chamber Setup Using Parameterized Field Method

et al. 2020

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Plane Wave Generator (PWG) has attracted great research interest in the industry and academia for sub-6 GHz massive MIMO base station (BS) measurement, thanks to its low-cost and smaller system setup. One major concern in the small setup is its high reflectivity level inside the anechoic chamber, which might distort the quiet zone performance significantly. Meanwhile, it is critical that the quiet zone performance is insusceptible to system inaccuracies. However, these two aspects are largely overlooked in the plane wave synthesis (PWS) study in the literature. In this paper, a new PWS strategy is proposed based on parametrized field distribution over an enlarged sampling area. The proposed method offers robust design and low reflectivity level. The effectiveness and robustness of the proposed PWS strategy is demonstrated in a numerical simulation. INDEX TERMS Excitation coefficient optimization, over-the-air testing, plane wave generators, small anechoic chamber.

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Section: Numerical Resultsmentioning

confidence: 99%