Sensing the Human User as a Part of Multiple-Antenna System Design [Wireless Corner]

2012 ◽  
Vol 54 (5) ◽  
pp. 231-237
Author(s):  
Sami Myllymaki ◽  
Markus Berg
Keyword(s):  
System Design ◽  
Antenna System ◽  
Multiple Antenna ◽  
Multiple Antenna System

scholarly journals High-Performance Multiple-Input Multiple-Output Antenna System For 5G Mobile Terminals

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1090 ◽  
Author(s):  
Mujeeb Abdullah ◽  
Saad Hassan Kiani ◽  
Lway Faisal Abdulrazak ◽  
Amjad Iqbal ◽  
M. A. Bashir ◽  
...  
Keyword(s):  
Multiple Input Multiple Output ◽  
Antenna System ◽  
Mimo Channel ◽  
Slot Antenna ◽  
Total Efficiency ◽  
Multiple Antenna ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Metal Casing ◽  
Multiple Antenna System

In this paper, the systematic design of a multiple antenna system for 5G smartphone operating at 3.5 GHz for multiple-input multiple-output (MIMO) operation in smartphones is proposed. The smartphone is preferred to be lightweight, thin, and attractive, and as a result metal casings have become popular. Using conventional antennas, such as a patch antenna, Inverted-F antennas, or monopole, in proximity to metal casing leads to decreasing its total efficiency and bandwidth. Therefore, a slot antenna embedded in the metal casing can be helpful, with good performance regarding bandwidth and total efficiency. The proposed multiple antenna system adopted the unit open-end slot antenna fed by Inverted-L microstrip with tuning stub. The measured S-parameters results agree fairly with the numerical results. It attains 200 MHz bandwidth at 3.5 GHz with ports isolation of (≤−13 dB) for any two antennas of the system. The influence of the customer’s hand for the proposed multiple antenna system is also considered, and the MIMO channel capacity is computed. The maximum achievable MIMO channel capacity based on the measured result is 31.25 bps/Hz and is about 2.7 times of 2 × 2 MIMO operation.

Harmonic interference suppression within a multiple‐antenna system using integrated slender magnetic metamaterials

2019 ◽  
Vol 62 (1) ◽  
pp. 355-362 ◽  
Author(s):  
Pan Yang ◽  
Jia‐Fu Wang ◽  
Ya‐Juan Han ◽  
Ya Fan ◽  
Yong‐Feng Li ◽  
...  
Keyword(s):  
Interference Suppression ◽  
Antenna System ◽  
Multiple Antenna ◽  
Multiple Antenna System
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