Volume 18, No. 2, 2021
Reimagining Wireless Connectivity: Crafting An Innovative 4x4 Fractal Mimo Antenna For Enhanced Wifi Performance
Rahul Choudhary
Abstract
With the emergence of practical implementations of Multiple Input Multiple Output (MIMO) technology, several challenges have surfaced, and one of these challenges involves devising strategies for the optimal placement of multiple antennas on both the transmitter and receiver sides to minimize interference. The physical locations where these antennas need to be positioned are not always ideal for accommodating multiple antennas in desired positions. To address this issue, MIMO antennas with a narrow vertical beamwidth have been engineered and strategically positioned within a single radome. This innovative approach significantly mitigates the challenges associated with antenna placement. Within the scope of this thesis, the design process for such antennas begins with the creation of a dual-band microstrip antenna that effectively radiates in both WLAN frequency bands. This particular antenna is crafted using a 0.5mm thick copper sheet, and its dual-band capabilities are achieved by introducing two slots in the sheet, forming two dipoles, each catering to a distinct frequency band. This type of antenna effectively alleviates the constraints related to antenna placement, especially when striving to ensure minimal interference between antennas on the transmitter and receiver sides. The physical locations where these antennas are intended to be installed are not always conducive to accommodating multiple antennas in desired configurations. To overcome this challenge, high-gain MIMO antennas can be employed, capable of receiving input from multiple sources without causing mutual interference. This approach provides an effective solution to the complex issue of antenna placement. The overarching goal of the research conducted in this thesis is to develop high-gain fractal antennas that can meet the demands of future communication standards, which prioritize high data rates and reliable performance simultaneously. These developed antennas effectively address the challenges associated with the placement of multiple antennas within a MIMO system, ultimately enhancing the overall performance and effectiveness of the communication system.
Pages: 3034-3047
Keywords: The dual-band antenna is crafted from a slender copper sheet, fashioned into a dipole antenna design.