GPS Interference Cancelation Using Metamaterials

Amir Jafargholi

doi:10.1109/OJAP.2024.3515475

GPS Interference Cancelation Using Metamaterials

2024-01-01

0

OA

AI

DOI：10.1109/OJAP.2024.3515475

原文链接

原文求助

摘要

En 中文

This paper introduces a novel passive method and structure designed to mitigate unwanted interference at the antenna in conventional Global Positioning System (GPS) applications. In contrast to traditional approaches that typically utilize high-impedance structures with limited cancelation or antenna arrays employing null-steering techniques, which often result in increased complexity and cost, this study proposes the use of a single-element circularly polarized truncated microstrip patch antenna radially loaded by a magneto-dielectric metamaterial (MTM) structure. The problem is analytically examined, and an appropriate meta cell is chosen, designed, and fabricated. Numerical simulations demonstrate that owing to the magnetic behavior of a new low-profile capacitively-loaded loop (CLL), it serves as an effective structure for suppressing unwanted azimuthal incident plane waves by up to 40 dB. The proposed MTM cover features a cylindrical shape with a diameter and height of 0.27 lambda(0 )and 0.42 lambda(0) , respectively, achieving a gain and efficiency of 6.5 dBi and 85%, respectively.

Keyword:

Global Positioning System

Antennas

Adaptive arrays

Metamaterials

Magnetic materials

Electric fields

Antenna radiation patterns

Permittivity

Microstrip antennas

Dielectrics

GPS antenna

metamaterials

interference cancelation

GPS Interference Cancelation Using Metamaterials

摘要

期刊

机构

引用论文