mmWave Four-Element MIMO Antenna for Future 5G Systems

Abstract

This paper presents an S-shape four-port Multiple Input Multiple Output (MIMO) wideband mmWave antenna with bandwidth of 25 GHz to 39 GHz. The antenna is designed on 0.254 mm ultra-thin RO5880 with permittivity of 2.3. The dimensions of proposed S-shape antenna are 10 × 12 mm for single element and 24 × 24 mm for four-port MIMO configuration. A decoupling network is introduced to further compress mutual coupling among MIMO elements. The peak gain achieved is 7.1 dBi and MIMO assembly delivers diversity scheme. The proposed MIMO antenna is fabricated, and simulated results are found to be in excellent agreement with simulations. Through the results obtained, the proposed MIMO antenna system can be considered as a potential candidate for future mmWave devices.

Planar MIMO antenna for mmWave applications: Evolution, present status & future scope

“…The MIMO antennas designed in Refs. [ 56 , [78] , [79] , [80] , [81] , [82] , [83] , [84] , [85] , [86] ] don't share the common ground point, which obviously results in better isolation S ij between the ports. And also, these are arranged in 180 0 /orthogonal orientation to reduce mutual coupling and enhance isolation.…”

“…The MIMO design in Refs. [ [80] , [81] , [82] , [83] , [84] , [85] , [86] ], and [ 56 ] are the 4-port element which is orthogonal/180 0 oriented for better isolation with the partial ground plane. In Ref.…”

“…In the next design, a line resonator of a fan-shaped decoupling structure is etched on top of the Rogers 5880 substrate to enhance the isolation [ 86 ]. The single-element is designed in three-stages, with the initial design of an I-shape radiator fed by a 50 Ω microstrip line.…”

A Novel Compact High Gain Wide-Band Log Periodic Dipole Array Antenna for Wireless Communication Systems

“…The S-shape antenna has a single element dimension of 10 mm by 12 mm and a four-port MIMO configuration dimension of 24 mm by 24 mm by 0.25 mm. The gain obtained overall is 7.1 dBi [29]. A smart phone's dual broadband sub-6GHz (MIMO) antenna setup.…”

Investigation of a Miniaturized Four-Element Antenna Integrated with Dipole Elements and Meta-Couplers for 5G Applications

“…Multi-element antennas play an important role in RF wireless communication architecture [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ] and its development towards uninterrupted high-speed data transfer with an increased efficiency, higher bandwidth, and low power consumption. With 5G networks [ 9 , 10 , 11 ] and adoption of the derivatives such as 5G chipsets, the Internet-of-Things (IoTs), Machine-2-Machine (M2M) connectivity, multi-element antennas are integrated to optimize the performance with high bandwidth and low latency.…”