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2021-09-10
Design of MIMO/Smart Antenna Arrays Using Different Array Modules for Handheld Device
By
Progress In Electromagnetics Research C, Vol. 115, 111-126, 2021
Abstract
In this paper, an eight-element MIMO smart antenna system consisting of two different array modules for handheld device is proposed. The system is composed of two antenna array modules. The first module is a six-element array operating in N78 (3.3-3.8 GHz) band for 5G, which achieves MIMO functions for receiving and beam scanning for transmitting. The second module is a two-element antenna array, which operates in LTE/WWAN/N78 (0.7-0.91 GHz, 1.63-2.61 GHz, 3.3-3.8 GHz) bands. To take full advantage of the existing antenna resources in the mobile device, the six elements in the first module are combined with the two elements in the second module to form an 8-element array in the overlapping N78 band. Good isolations and envelope correlation coefficients are achieved in the receiving mode by loading L-shaped slots for the combined module. The distribution of excitations for the combined array in the transmitting mode is optimized by the method of maximum power transmission efficiency to direct the beam to the desired direction with maximum possible gain, and is realized by an in-house designed beamforming controller. The impacts of the environments on the antenna array performance are investigated.
Citation
Panpan Wei, and Wen Geyi, "Design of MIMO/Smart Antenna Arrays Using Different Array Modules for Handheld Device," Progress In Electromagnetics Research C, Vol. 115, 111-126, 2021.
doi:10.2528/PIERC21072001
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