Slot antenna array for fifth generation metal frame mobile phone applications

2019 ◽  
Vol 29 (9) ◽  
Author(s):  
Daiwei Huang ◽  
Zhengwei Du ◽  
Yan Wang
Keyword(s):  
Mobile Phone ◽  
Antenna Array ◽  
Slot Antenna ◽  
Fifth Generation ◽  
Mobile Phone Applications ◽  
Metal Frame

scholarly journals Mobile-Phone Antenna Array with Diamond-Ring Slot Elements for 5G Massive MIMO Systems

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 ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Antenna Array ◽  
Massive Mimo ◽  
Printed Circuit Board ◽  
High Efficiency ◽  
Mimo Systems ◽  
Circuit Board ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Diamond Ring

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.

scholarly journals Compact Antenna for 4G/5G Metal Frame Mobile Phone Applications Using a Tuning Line

Electronics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 439 ◽  
Author(s):  
Daiwei Huang ◽  
Zhengwei Du ◽  
Yan Wang
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Coupled Line ◽  
Compact Antenna ◽  
Ground Clearance ◽  
Lower Band ◽  
Mobile Phone Applications ◽  
Metal Frame

A compact antenna with a 6 mm ground clearance for 4G and 5G metal frame mobile phones is proposed in this paper. The proposed antenna consists of a coupled line, a ground branch, a monopole branch, and a tuning line. The ground branch and the coupled line are used to obtain the lower band (698–960 MHz), the monopole branch is used to improve the match at the lower band and obtain the higher band (1710–2690, 3400–3800 MHz), and the tuning line is used to improve the match at the higher band. The novelty of the proposed antenna is that more modes are excited and work together to obtain multiple working bands, by using the coupled line and the folded branches with the help of the tuning line, and then nine bands are obtained under the conditions of a 6 mm, only, ground clearance and a metal frame environment. A prototype has been fabricated and measured. The measured −6 dB impedance bandwidths are 345 MHz (0.685–1.03 GHz) and 2.16 GHz (1.67–3.83 GHz) at the lower and higher bands, respectively. The LTE700, GSM850, GSM900, DCS, PCS, UMTS, LTE2300, and LTE2500 bands for 2G, 3G, 4G, and the 3.5 GHz band that is possible for 5G are covered. The measured efficiencies and patterns are also presented.

scholarly journals A Wideband Antenna with Circular and Rectangular Shaped Slots for Mobile Phone Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Wei-Hua Zong ◽  
Xiao-Mei Yang ◽  
Xia Xiao ◽  
Shan-Dong Li ◽  
Xiang-Yang Wei ◽  
...  
Keyword(s):  
Transmission Line ◽  
Mobile Phone ◽  
Impedance Matching ◽  
Ground Plane ◽  
Slot Antenna ◽  
Microstrip Transmission Line ◽  
Rectangular Shape ◽  
Antenna Size ◽  
Wideband Antenna ◽  
Mobile Phone Applications

A wideband slot antenna for mobile phone applications is proposed. The antenna has two slots with open ends etched on the opposite edges of the ground plane. The main slot, of total length of 59 mm, is composed of a rectangle connected to a circle having radius of 5 mm. Another slot, having a rectangular shape with width of 2.8 mm and length of 26 mm, is employed to enhance the antenna bandwidth. The slots are fed by means of a rectangular monopole connected to a circular patch joined to a bent 50 Ω microstrip transmission line forming two right angles. To obtain a wideband impedance matching, the upper edge of the monopole and a part of the feeding line evolve along the top edge of the two slots. To reduce the antenna size, the upper part of the board above the slot (just 3 mm from the slot) is folded vertically to the ground plane. The measured bandwidth of the antenna is 0.698–1.10 GHz and 1.64–2.83 GHz covering LTE700/2300/2500, GSM850/900/1800/1900, and UMTS bands.

Wideband eight‐element antenna for 5G metal frame mobile phone applications

2020 ◽  
Vol 30 (12) ◽  
Author(s):  
Lin Guo ◽  
Zheng Liu ◽  
Heng Liu ◽  
Daiwei Huang ◽  
Zhengwei Du
Keyword(s):  
Mobile Phone ◽  
Mobile Phone Applications ◽  
Metal Frame

scholarly journals Wideband Dual-Element Antenna Array for MIMO Mobile Phone Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Yuanqiang Wang ◽  
Jie Yang ◽  
Shangfu Hao ◽  
Xiao Zhang
Keyword(s):  
Mobile Phone ◽  
Antenna Array ◽  
Correlation Coefficient ◽  
Impedance Matching ◽  
Ground Plane ◽  
Ergodic Capacity ◽  
Planar Antenna ◽  
Antenna Size ◽  
Mobile Phone Applications ◽  
Planar Antenna Array

A printed dual-element antenna array for LTE MIMO mobile phone applications is presented in this paper. The two array elements are symmetrically placed with the same dimensions, and each of the them consists of a novel driven strip and a wandering shorting strip. The driven strip is a whole loop, which improves the impedance matching for the upper band. Therefore, the bandwidth coverage is expanded and the antenna size is minimized at the same time. In addition, thanks to the protruded ground on the ground plane, the antenna isolation between the two array elements is significantly enhanced. The proposed planar antenna array successfully covers the seven operating bands of GSM850/900/1800/1900/UMTS2100/LTE2300/2500, and the isolation is more than 10 dB. The prototype was fabricated and tested, withSparameters, efficiency, radiation patterns, envelop correlation coefficient (ECC), and ergodic capacity presented. From the measured results, it is indicated that the antenna array has excellent and reliable performances when it is applied in MIMO applications.

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