Hostname: page-component-848d4c4894-ttngx Total loading time: 0 Render date: 2024-06-09T13:41:50.642Z Has data issue: false hasContentIssue false
  • English
  • Français

Compact dual-band MIMO monopole dual-antenna system for 5G laptops

Published online by Cambridge University Press:  05 April 2023

Shu-Chuan Chen Open the ORCID record for Shu-Chuan Chen [Opens in a new window] ,
Kuan-Yi Li  and
Chih-Kuo Lee
Shu-Chuan Chen*
Affiliation:
National Defense University, 75 Shiyuan Road, Daxi Township, Taoyuan County 33551, Taiwan, R.O.C.
Kuan-Yi Li
Affiliation:
National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, Taiwan, R.O.C.
Chih-Kuo Lee
Affiliation:
National Defense University, 75 Shiyuan Road, Daxi Township, Taoyuan County 33551, Taiwan, R.O.C.
*
Author for correspondence: Shu-Chuan Chen, E-mail: chensc@ema.ee.nsysu.edu.tw
Get access Rights & Permissions [Opens in a new window]

Abstract

The study aimed to present a dual-band 5G multi-input multi-output monopole dual-antenna system, which was configured on the upper edge of the display ground plane for laptops. The dual-antenna unit is a 29 × 2 × 3 mm3 three-dimensional structure with two antennas of the same structure and size, consisting of a fed monopole antenna and a shorted monopole antenna. The antennas are arranged 4 mm apart, side by side in the same direction, to form a dual-antenna unit. Such a configuration allows the feeding points of the two antennas to be separated by the shorting point of the shorted monopole antenna, and the shorting point of the low-frequency resonant path (the shorted monopole antenna) of the two antennas to be larger than a quarter of the wavelength of the low frequency with appropriate bending. The strong current will be concentrated near the shorting point of the shorted monopole antenna when the low-frequency mode is excited, and the current flow from the ground to the feeding point of the other antenna will be reduced, achieving the isolation which is better than 10 dB in measurement between the two antennas without adopting any isolation element. The envelope correlation coefficients calculated from the measured complex E-field radiation patterns are all smaller than 0.12, which can cover the 5G dual-band operations of 3300–3600 and 4800–5000 MHz, and the measured antenna efficiencies can reach more than 40%, which are well suited for multiple antenna applications.

Keywords

5G antennaslaptop antennasmonopole antennasmulti-input multi-output (MIMO) antennas
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 7 , September 2023 , pp. 1233 - 1241
Check for updates
Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Fagbohun, O (2014) Comparative studies on 3G, 4G and 5G wireless technology. IOSR Journal of Electronics and Communication Engineering 9, 74–80.CrossRefGoogle Scholar
Satinder, and Babbar, V (2015) 3G, 4G and 5G wireless mobile networks: a comparative study. International Journal of Advanced Technology in Engineering and Science 3, 717–726.Google Scholar
5G Americas White Paper: Advanced Antenna Systems for 5G, Aug. 2019. Accessed: May 2022. [Online]. Available at https://www.5gamericas.org/wp-content/uploads/2019/08/5G-Americas_Advanced-Antenna-Systems-for-5G-White-Paper.pdf.Google Scholar
Li, WY, Chen, WJ and Wu, CY (2012) Multiband 4-port MIMO antenna system for LTE700/2300/2500 operation in the laptop computer. Proceedings of APMC 2012, Kaohsiung, Taiwan, Dec. 4–7, 2012.CrossRefGoogle Scholar
Yang, Y, Chu, Q and Mao, C (2016) Multiband MIMO antenna for GSM, DCS, and LTE indoor applications. IEEE Antennas and Wireless Propagation Letters 15, 1573–1576.CrossRefGoogle Scholar
Barani, IRR and Wong, KL (2018) Integrated inverted-F and open-slot antennas in the metal-framed smartphone for 2×2 LTE LB and 4×4 LTE M/HB MIMO operations. IEEE Transactions on Antennas and Propagation 66, 5004–5012.CrossRefGoogle Scholar
Wong, KL, Wan, CC and Chen, LY (2018) Self-decoupled compact metal-frame LTE MIMO antennas for the smartphone. Microwave and Optical Technology Letters 60, 1170–1179.CrossRefGoogle Scholar
Ban, YL, Li, C, Sim, CYD, Wu, G and Wong, KL (2016) 4G/5G multiple antennas for future multi-mode smartphone applications. IEEE Access 4, 2981–2988.CrossRefGoogle Scholar
Wong, KL and Lu, JY (2015) 3.6-GHz 10-antenna array for MIMO operation in the smartphone. Microwave and Optical Technology Letters 57, 1699–1704.CrossRefGoogle Scholar
Wong, KL and Chen, LY (2015) Dual inverted-F antenna with a decoupling chip inductor for the 3.6-GHz LTE operation in the tablet computer. Microwave and Optical Technology Letters 57, 2189–2194.CrossRefGoogle Scholar
Chen, SC, Chiang, CW and Hsu, C-IG (2019) Compact four-element MIMO antenna system for 5G laptops. IEEE Access 7, 186056–186064.CrossRefGoogle Scholar
Wong, KL and Chang, HJ (2015) Hybrid dual-antenna for the 3.6-GHz LTE operation in the tablet computer. Microwave and Optical Technology Letters 57, 2592–2598.CrossRefGoogle Scholar
Wong, KL, Tsai, CY and Lu, JY (2017) Two asymmetrically mirrored gap-coupled loop antennas as a compact building block for eight-antenna MIMO array in the future smartphone. IEEE Transactions on Antennas and Propagation 65, 1765–1778.CrossRefGoogle Scholar
Wong, KL, Lin, BW and Li, WY (2017) Dual-band dual inverted-F/loop antennas as a compact decoupled building block for forming eight 3.5/5.8-GHz MIMO antennas in the future smartphone. Microwave and Optical Technology Letters 59, 2715–2721.CrossRefGoogle Scholar
Chen, SC, Chou, LC, Hsu, C-IG and Li, SM (2020) Compact sub-6-GHz four-element MIMO slot antenna system for 5G tablet devices. IEEE Access 8, 154652–154662.CrossRefGoogle Scholar
Wong, KL, Chen, YH and Li, WY (2018) Decoupled compact ultra-wideband MIMO antennas covering 3.3~6.0 GHz for the fifth-generation mobile and 5 GHz-WLAN operations in the future smartphone. Microwave and Optical Technology Letters 60, 2345–2351.CrossRefGoogle Scholar
Corporation HFSS. Accessed: Aug. 16, 2021. [Online]. Available at http://www.ansys.com/products/electronics/ansys-hfss.Google Scholar
Vaughan, RG and Andersen, JB (1987) Antenna diversity in mobile communications. IEEE Transactions on Vehicular Technology vt-36, 149–172.CrossRefGoogle Scholar
Sarkar, D, Saurav, K and Srivastava, KV (2016) A compact dual band four element MIMO antenna for pattern diversity applications. Presented at 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation (APCAP)sia-Pacific Microwave Conference Proceedings (APMC), Kaohsiung, Taiwan, Jul. 26–28, 2016.CrossRefGoogle Scholar