Abstract
Antenna array of large scale have been examined for different applications including 5G technology. To get better data rate or a reliable link substantial number of antenna arrays have been utilized to provide high multiplexing gains as well as array gains with high directivity. In this paper a simple but efficient implementation technique of using sub-arrays for the improvement of large-sized uniform arrays. By repeating a small sub-array multiple times large arrays can be designed. This implication of utilizing small array simplifies the design of a larger array which allows the designer to concentrate on the smaller sub-array before assembling larger arrays. So, by investigating the sub arrays the performance and radiation characteristics of large arrays can be anticipated. The array-factor for a planar sub-array of 2x2 (4 elements) is analyzed using Mat-lab software and then a large array is formed by placing the 2x2 sub-array indifferent configurations in a rectangular arrangements up to 8x8 planar array. And then the results are validated with CST (Computer simulation technology) simulation results.In this way the array-factors, directivities, HPBWs, and side lobes of the constructed large arrays are analyzed and associated with the small sub-array.
Highlights
Large-Scale Antenna Array system is a vital notion in wireless communications research areas, which highlights the importance of advanced 5G technological network architectures
As large antenna arrays generally resonate in millimeter wave frequency ranges, their position can be confined in a very small area with a variety of array configurations i.e. planar, circular, spherical or cylindrical [5,6]
The consistent frequencies that are used for Massive MIMO structures are 3-6GHz, 27-28GHz and 60-70GHz, whilst the kind of antennas investigated can be shaped as patch antennas, horn antennas and dipoles in some cases
Summary
Large-Scale Antenna Array ( known as Massive MIMO or Hyper MIMO) system is a vital notion in wireless communications research areas, which highlights the importance of advanced 5G technological network architectures. At the base stations a huge number of array antennas operate consistently in order to direct the signals into smaller regions of space. As large antenna arrays generally resonate in millimeter wave frequency ranges, their position can be confined in a very small area with a variety of array configurations i.e. planar, circular, spherical or cylindrical [5,6]. Large planar arrays such as 4x4, 8x8, 16x16, and 32x32 can be geared upinto small areas of less than one square centimeter at the base stations. Planar arrays are characterized with high gains and very directive beams in the preferred directions whilst
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
