Please use this identifier to cite or link to this item:
Title: Design of a meta-ring for improving the isolation between antennas
Authors: Guo, Yuqing
Keywords: Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Guo, Y. (2022). Design of a meta-ring for improving the isolation between antennas. Master's thesis, Nanyang Technological University, Singapore.
Project: ISM-DISS-02638
Abstract: In today’s mobile communication, more antennas are needed in both the terminal and base station. At the same time, the size of the equipment is expected to be smaller and smaller. The small spacing between antenna elements will inevitably lead to a strong mutual coupling problem. This will seriously affect the radiation performance of the antenna, so decoupling is needed in the antenna array. The decoupling method of radiation pattern diversity can be achieved to improve the isolation characteristics between antennas by making the radiation pattern of antennas point to different directions so that there will be no intersection. Because the monopole antenna has an omnidirectional radiation directional plot. When two monopole antennas are close to each other, they will have strong coupling, so this project selects monopole antenna to study the radiation pattern diversity decoupling method. This project achieves the deflection of the radiation pattern of the monopole antenna by loading a generalized metasurface structure composed of metal rings around the monopole so that the radiation direction map of the monopole forms a conical beam and produces a null in the horizontal direction. Thus achieving the goal of decoupling the monopole antenna array. The decoupling structure is simple and easy to implement, with relatively good performance.
Schools: School of Electrical and Electronic Engineering 
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

Files in This Item:
File Description SizeFormat 
GUO YUQING Amened Dissertation.pdf
  Restricted Access
4.63 MBAdobe PDFView/Open

Page view(s)

Updated on Dec 2, 2023


Updated on Dec 2, 2023

Google ScholarTM


Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.