Waveguide-Fed Cavity Backed Slot Antenna Array with high efficiency in the Ku-band

Author(s):  
Guan-Long Huang ◽  
Shi-Gang Zhou ◽  
Tan-Huat Chio
Electronics ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 521 ◽  
Author(s):  
Naser Ojaroudi Parchin ◽  
Haleh Jahanbakhsh Basherlou ◽  
Mohammad Alibakhshikenari ◽  
Yasser Ojaroudi Parchin ◽  
Yasir I. A. Al-Yasir ◽  
...  

A design of mobile-phone antenna array with diamond-ring slot elements is proposed for fifth generation (5G) massive multiple-input/multiple-output (MIMO) systems. The configuration of the design consists of four double-fed diamond-ring slot antenna elements placed at different corners of the mobile-phone printed circuit board (PCB). A low-cost FR-4 dielectric with an overall dimension of 75 × 150 mm2 is used as the design substrate. The antenna elements are fed by 50-Ohm L-shaped microstrip-lines. Due to the orthogonal placement of microstrip feed lines, the diamond-ring slot elements can exhibit the polarization and radiation pattern diversity characteristic. A good impedance bandwidth (S11 ≤ −10 dB) of 3.2–4 GHz has been achieved for each antenna radiator. However, for S11 ≤ −6 dB, this value is 3–4.2 GHz. The proposed design provides the required radiation coverage of 5G smartphones. The performance of the proposed MIMO antenna design is examined using both simulation and experiment. High isolation, high efficiency and sufficient gain-level characteristics have been obtained for the proposed MIMO smartphone antenna. In addition, the calculated total active reflection coefficient (TARC) and envelope correlation coefficient (ECC) of the antenna elements are very low over the whole band of interest which verify the capability of the proposed multi-antenna systems for massive MIMO and diversity applications. Furthermore, the properties of the design in Data-mode/Talk-mode are investigated and presented.


2020 ◽  
Vol 19 (8) ◽  
pp. 1360-1364
Author(s):  
Rui-Sen Chen ◽  
Lei Zhu ◽  
Jing-Yu Lin ◽  
Sai-Wai Wong ◽  
Yang Yang ◽  
...  

2021 ◽  
Author(s):  
Hongjun Chu ◽  
Teni Geer ◽  
Na Wu ◽  
Chen Zhou ◽  
Ming Zhou

2014 ◽  
Vol 8 (13) ◽  
pp. 1041-1046 ◽  
Author(s):  
Huang Guan‐Long ◽  
Zhou Shi‐Gang ◽  
Chio Tan‐Huat ◽  
Yeo Tat‐Soon
Keyword(s):  

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 6707-6714 ◽  
Author(s):  
Jianquan Huang ◽  
Feng Qiu ◽  
Wei Lin ◽  
Zhenghua Tang ◽  
Dajun Lei ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Zhao Xiao-Fang ◽  
Liu Hua-Zhu ◽  
Li Yi ◽  
Zhou Shi-Gang ◽  
Chow-Yen-Desmond Sim

A low VSWR and high efficiency antenna array operating in the Ku band for satellite communications is presented in this paper. To achieve high radiation efficiency and broad enough bandwidth, all-metal radiation elements and full-corporate waveguide feeding network are employed. As the general milling method is used in the multilayer antenna array fabrication, the E-plane waveguide feeding network is adopted here to suppress the wave leakage caused by the imperfect connectivity between adjacent layers. A 4 × 8 elements array prototype was fabricated and tested for verification. The measured results of proposed antenna array show bandwidth of 6.9% (13.9–14.8 GHz) for VSWR < 1.5. Furthermore, antenna gain and efficiency of higher than 22.2 dBi and 80% are also exhibited, respectively.


2019 ◽  
Vol 18 (6) ◽  
pp. 1248-1252 ◽  
Author(s):  
Xun Jiang ◽  
Fangxiu Jia ◽  
Yang Cao ◽  
Pan Huang ◽  
Jiyan Yu ◽  
...  

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