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Defected ground structured compact MIMO antenna with low mutual coupling for automotive communications
Author(s) -
Madhav Boddapati T. P.,
Usha Devi Yalavarthi,
Anilkumar Tirunagari
Publication year - 2019
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.31626
Subject(s) - mimo , electronic engineering , stub (electronics) , dipole antenna , diversity gain , 3g mimo , antenna factor , antenna measurement , antenna efficiency , engineering , antenna (radio) , telecommunications , electrical engineering , beamforming
This paper presents the analysis of a T‐stub loaded two element MIMO antenna placed in the vehicular environment at different positions on the vehicle. The MIMO antenna consists of two collinear printed dipoles as the elements. It operates for millimetre wave frequencies from 24.6–42.1 GHz and 50.1–52.5 GHz with a bandwidth of 17.5 GHz and 2.4 GHz respectively. The two elements of the MIMO antenna have the minimum mutual coupling of −89.5dB over the operating band. The envelop correlation coefficient (ECC) of the MIMO antenna is less than 0.01 throughout the band and the diversity gain (DG) is about 10. The MIMO antenna is placed at four different positions on the vehicle in virtual vehicular environment using ANSYS SAVANT. The measured results are matching with the simulation results and the proposed MIMO antenna can be used for future 5G communications for different automotive applications.