Miniaturized inverted ultra‐wideband multiple‐input multiple‐output antenna with high isolation

For the ultra‐wideband (UWB) transmission requirements in wireless communication systems and better miniaturization of mobile terminal antennas, a compact UWB multiple‐input multiple‐output (MIMO) antenna with higher isolation between units is proposed. The MIMO antenna consists of two semi‐circular...

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Bibliographic Details
Published in:Electronics letters 2021-02, Vol.57 (3), p.100-102
Main Authors: Nan, Jing‐Chang, Wang, Ming‐Huan, Gao, Ming‐Ming, Liu, Jing
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Bandwidths
Correlation coefficients
Fractals
Ground plane
MIMO communication
Radiation
Radio links and equipment
Reflectance
Simulation
Ultrawideband
Waveguides and microwave transmission lines
Wireless communication systems
Wireless communications
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Summary:For the ultra‐wideband (UWB) transmission requirements in wireless communication systems and better miniaturization of mobile terminal antennas, a compact UWB multiple‐input multiple‐output (MIMO) antenna with higher isolation between units is proposed. The MIMO antenna consists of two semi‐circular antenna units and a defective ground structure. By improving the structure of the ground plane, the antenna units are placed upside down by taking advantage of the inherent directional radiation characteristics of the antenna units, thereby achieving higher isolation. The proposed antenna size is 15 × 22 × 1.6 mm3. The measurement results show that the proposed UWB MIMO antenna satisfies the port reflection coefficient S11 
ISSN:0013-5194
1350-911X
DOI:10.1049/ell2.12072