Loading...

Design and Improvement of Meta-Surface Based MIMO Antennas for 5G Millimeter Wave

Molavi, Mehran | 2024

0 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 57724 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Akbari, Mahmood
  7. Abstract:
  8. Wireless communication systems play a pivotal role in the daily lives of individuals. Given the escalating demand for higher data rates and enhanced reliability, there is an imperative need for cutting-edge communication technologies. Rigorous research is being conducted in these systems to refine and optimize antenna structures, aiming at augmenting performance, escalating data transmission rates, and mitigating interference. Microstrip antenna structures have garnered considerable attention due to their diminutive dimensions, adaptability to planar and non-planar surfaces, simplistic design, cost-effectiveness, and mechanical resilience. These antennas, featuring diverse patch shapes, afford the capability to fine-tune polarization, pattern, and impedance matching. Nonetheless, challenges such as suboptimal efficiency, limited power, and constrained bandwidth persist. To surmount these challenges, this project employs an antenna array. By juxtaposing multiple microstrip patches to form an antenna array, enhancements in gain, increased bandwidth, beamforming in specific directions, and resistance to interference can be attained. In certain scenarios, to boost data transfer speed, gain, and bandwidth, the utilization of multi-input multi-output (MIMO) structures becomes imperative. These structures facilitate the simultaneous and autonomous transmission of multiple data streams, yielding advantages such as augmented data transfer speed and fortified capacity in wireless communication systems. One hurdle in deploying MIMO structures is mutual coupling between antennas, for which various remedies have been proposed. Innovative methodologies proposed to tackle these challenges and refine overall efficiency and bandwidth encompass the incorporation of meta surfaces. Meta surfaces, characterized by unique attributes like high surface impedance and phase-coherent reflection, contribute to advancing antenna gain, beam steering, polarization control, antenna scattering, size reduction, bandwidth enhancement, and effective radar cross-section reduction. This project is dedicated to designing a multi-input multi-output structure employing microstrip patch antennas. Subsequently, meta surfaces will be integrated to augment the structure's performance, and the ramifications of meta surfaces on the overall structure will be scrutinized
  9. Keywords:
  10. Multiple Input Multiple Output (MIMO)System ; Phased Array Antenna ; Metasurfaces ; Millimeter Wave ; 5th Generation Cellular Network ; Chebyshev Pollynomials

 Digital Object List

 Bookmark

No TOC