Abstract
Minimum Redundancy Linear Arrays (MRLAs) and Uniform Linear Arrays (ULAs) investigation conducted with the possibility of using them in future 5G smart devices. MRLAs are designed to minimize the number of sensor pairs with the same spatially correlated delay. It eliminates selected antennas from the entire composite antenna array and preserves all possible antenna spacing. MRLAs have attractive features for linear sparse arrays, even if the built-in surface is deformed, it works without problems. To our knowledge, MRLAs have not been applied to smart devices so far. In this work, a 7-element ULAs and 4-element MRLAs (same aperture) were used for the simulation. The Half Power Beamwidth (HPBW) is 0.666 and the Null-to-Null Beamwidth ( ) is 1.385 in ψ-space. In comparison, the standard 4-element arrays are 1.429 and 3.1416, while the standard 7-element linear arrays are 0.801 and 1.795 respectively. Experimental results show that 4-element MLRAs have a narrower mean beam, much higher sidelobes and shallow nulls. Therefore, in terms of main lobe features, 4- elements MRLAs have an improvement over the standard 7-element ULAs. Doi: 10.28991/esj-2021-SP1-05 Full Text: PDF
Highlights
Over the past two decades, the development of wireless communication systems has dramatically changed our way of life
This paper presents an iterative process for adjusting the loading levels to achieve the sidelobe level limitations in order to provide a universal and array configuration-independent sidelobe levels (SLLs) reduction technique with a quicker convergence time and adaptive beampattern creation
Consider 4-element array equivalent to a standard linear array with a 7-element aperture of ideal Minimum Redundancy Linear Arrays (MRLAs) shown in Figure 2 with d = λ⁄2
Summary
Over the past two decades, the development of wireless communication systems has dramatically changed our way of life. Potential wireless support applications such as multimedia devices, the Internet of Things (IoT), and intelligent transportation systems require gigabit data rates per second that cannot be handled by current 4G communications systems due to limited bandwidth. An advanced mobile system is urgently needed to overcome bandwidth limitations. The International Telecommunication Union has licensed several millimeter-wave (mm-wave) spectrums. Potential fifth-generation (5G) and higher applications, including 24.25-27.5, 37-40, and 66-76 GHz [1].
Sign-in/Register to view highlights & summary 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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
