volume | PIER Journals

Abstract

This work designs an electromagnetic band gap structure-based quad port rectangular MIMO antenna to operate in the 5G new radio (NR) sub-6 GHz n79 band, with a frequency range of 4.3-5.0 GHz. To achieve optimal radiating element isolation with the least complexity, MIMO antennas' four radiating elements are oriented orthogonally using an A-shaped electromagnetic band gap (EBG) structure. The EBG structure is located between the human phantom model and the MIMO antenna. The MIMO antenna's measurements are 40 × 40 × 1.6 mm³, and it is implemented on an FR-4 substrate with whole ground. Due to EBG structure, the mutual coupling is improved to -26.0 dB. The ECC, DG, and CCL were also calculated. In addition, the SAR (specific absorption rate) value is reduced to 0.22 w/kg. The MIMO antenna is simulated using HFSS software. The vector network analyzer (VNA), model Anritsu MS 2037C is used to measure the various MIMO antenna parameters.

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Mr. Govindarao Tamminaina

Dr. Ramesh Manikonda