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A two element MIMO antenna for sub‐6 GHz and mmWave 5G systems using characteristics mode analysis
Author(s) -
Kumar Naveen,
Khanna Rajesh
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32626
Subject(s) - mimo , ground plane , wideband , antenna (radio) , extremely high frequency , bandwidth (computing) , planar , physics , electronic engineering , acoustics , engineering , electrical engineering , computer science , telecommunications , optics , beamforming , computer graphics (images)
In this article, a two‐element multiband multi‐input multi‐output (MIMO) antenna for 5G communication devices is presented. Characteristics mode analysis is used to develop the proposed antenna. The planar inverted‐F antenna (PIFA) structure is used as an antenna element operating at 3.5, 4.3, 28, and 35 GHz bands. The shape of the PIFA is L‐shaped patch with an L slot placed which is positioned above the ground plane at 4 mm height. The proposed antenna covers more than 400 MHz bandwidth at 3.5, 4.3 GHz bands, and wideband coverage of more than 12 GHz covering many millimeter Wave (mmWave) bands between 24 and 38 GHz. The use of complementary metamaterial unit cell resulted in a minimum of 21 dB isolation in 3.5 GHz band and a minimum of 24 dB in mmWave bands. The simulated and measured results are presented for the proposed MIMO antenna system, which is in good agreement with each other.