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Near-Field Measurement System for 5G Advanced Antenna System at mm-Wavelength

Wang, Bofei LU (2020) EITM02 20191
Department of Electrical and Information Technology
Abstract
An antenna is one of the most fundamental elements of wireless communication
systems. The radiation behavior of antennas is characterized with the aid of the farfield radiation pattern. In this thesis, a near-field antenna measurement system is
designed to predict the far-field pattern of antenna operational frequency 28 GHz
and 39 GHz. The near-field measurement system operates by measuring magnitude
and phase of the tangential electric field components radiated by antenna under test
over a surface in an anechoic chamber and then mathematically transforming using
the MATLAB tool into the far-field radiation pattern.
The WR28 standard gain horn antenna is used as an antenna under test and WR28
rectangular waveguide as a... (More)
An antenna is one of the most fundamental elements of wireless communication
systems. The radiation behavior of antennas is characterized with the aid of the farfield radiation pattern. In this thesis, a near-field antenna measurement system is
designed to predict the far-field pattern of antenna operational frequency 28 GHz
and 39 GHz. The near-field measurement system operates by measuring magnitude
and phase of the tangential electric field components radiated by antenna under test
over a surface in an anechoic chamber and then mathematically transforming using
the MATLAB tool into the far-field radiation pattern.
The WR28 standard gain horn antenna is used as an antenna under test and WR28
rectangular waveguide as a probe. The planar scanning geometric was implemented
by designing a scanner of length 165 mm x 175 mm and near-field data are measured
at specific points based on the sampling values using a Vector Network Analyzer (VNA)
in an anechoic chamber. The near-field to far-field transformation is implemented
using the Plane Wave Spectrum (PWS) method by Fourier transforms in MATLAB. The
measurements were performed for different separation distances between the antennas, sampling value, and reasonably accurate results are observed. (Less)
Please use this url to cite or link to this publication:
author
Wang, Bofei LU
supervisor
organization
course
EITM02 20191
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Near-field, Measurement system, 5G, mm-wave length, antenna
report number
LU/LTH-EIT 2022-861
language
English
id
9078774
date added to LUP
2022-05-03 15:56:10
date last changed
2022-05-03 15:56:10
@misc{9078774,
  abstract     = {{An antenna is one of the most fundamental elements of wireless communication 
systems. The radiation behavior of antennas is characterized with the aid of the farfield radiation pattern. In this thesis, a near-field antenna measurement system is 
designed to predict the far-field pattern of antenna operational frequency 28 GHz 
and 39 GHz. The near-field measurement system operates by measuring magnitude 
and phase of the tangential electric field components radiated by antenna under test 
over a surface in an anechoic chamber and then mathematically transforming using 
the MATLAB tool into the far-field radiation pattern.
The WR28 standard gain horn antenna is used as an antenna under test and WR28 
rectangular waveguide as a probe. The planar scanning geometric was implemented 
by designing a scanner of length 165 mm x 175 mm and near-field data are measured 
at specific points based on the sampling values using a Vector Network Analyzer (VNA) 
in an anechoic chamber. The near-field to far-field transformation is implemented 
using the Plane Wave Spectrum (PWS) method by Fourier transforms in MATLAB. The 
measurements were performed for different separation distances between the antennas, sampling value, and reasonably accurate results are observed.}},
  author       = {{Wang, Bofei}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Near-Field Measurement System for 5G Advanced Antenna System at mm-Wavelength}},
  year         = {{2020}},
}