Open AccessHigh Gain Circularly Polarized Pentagonal Microstrip for Massive MIMO Base Station
Author(s) -
Raghunath S. Bhadade,
S. P. Mahajan
Publication year - 2019
Publication title -
advanced electromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.242
H-Index - 15
ISSN - 2119-0275
DOI - 10.7716/aem.v8i3.764
Subject(s) - return loss , hfss , mimo , physics , microstrip antenna , optics , materials science , bandwidth (computing) , patch antenna , antenna (radio) , optoelectronics , telecommunications , computer science , channel (broadcasting)
In this paper we propose a circularly polarized pentagonal microstrip antenna on a suspended substrate with coaxial probe feed and five loaded slits for Massive MIMO BS Antenna applications. Massive Multiple-Input Multiple-Output (MIMO) is one of the key component to be incorporated in the 5G cellular systems. The proposed antenna is successfully simulated using HFSS 13.0, fabricated on a FR-4 substrate and measured. The proposed antenna exhibits a much higher gain of 6.17dB, improved impedance bandwidth of 171.9 MHz (Return loss, S11= -10dB) , axial ratio bandwidth (< 3dB) of 135 MHz , patch area of 1775 mm2 , and also yields return loss better than -15 dB around the center frequency of 2.45 GHz (ISM Band). Measured characteristics of the antenna are in good agreement with the simulated results.