S-Parameter Method and Its Application for Antenna Measurements

Takayuki SASAMORI; Toru FUKASAWA

doi:10.1587/transcom.E97.B.2011

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S-Parameter Method and Its Application for Antenna Measurements

Takayuki SASAMORI, Toru FUKASAWA

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This paper focuses on the S-parameter method that is a basic method for measuring the input impedance of balanced-fed antennas. The basic concept of the method is summarized using the two-port network, and it is shown that the method can be enhanced to the unbalanced antennas using a formulation based on incident and reflected waves. The compensation method that eliminates the influence of a measurement jig and the application of the S-parameter method for the measurement of a radiation pattern with reduced unbalanced currents are explained. Further, application of the method for measuring the reflection and coupling coefficients of multiple antennas is introduced. The measured results of the input impedance of a dipole antenna, radiation patterns of a helical antenna on a small housing, and S-parameters of multiple antennas on a small housing are examined, and the measured results obtained with the S-parameter method are verified.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.10 pp.2011-2021

Publication Date: 2014/10/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.2011

Type of Manuscript: Special Section INVITED PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)

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Authors

Takayuki SASAMORI
Akita Prefectural University
Toru FUKASAWA
Mitsubishi Electric Corporation

Keyword

S-parameter method, input impedance, radiation pattern, reflection coefficient

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Takayuki SASAMORI, Toru FUKASAWA, "S-Parameter Method and Its Application for Antenna Measurements" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 10, pp. 2011-2021, October 2014, doi: 10.1587/transcom.E97.B.2011.
Abstract: This paper focuses on the S-parameter method that is a basic method for measuring the input impedance of balanced-fed antennas. The basic concept of the method is summarized using the two-port network, and it is shown that the method can be enhanced to the unbalanced antennas using a formulation based on incident and reflected waves. The compensation method that eliminates the influence of a measurement jig and the application of the S-parameter method for the measurement of a radiation pattern with reduced unbalanced currents are explained. Further, application of the method for measuring the reflection and coupling coefficients of multiple antennas is introduced. The measured results of the input impedance of a dipole antenna, radiation patterns of a helical antenna on a small housing, and S-parameters of multiple antennas on a small housing are examined, and the measured results obtained with the S-parameter method are verified.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.2011/_p

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@ARTICLE{e97-b_10_2011,
author={Takayuki SASAMORI, Toru FUKASAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={S-Parameter Method and Its Application for Antenna Measurements},
year={2014},
volume={E97-B},
number={10},
pages={2011-2021},
abstract={This paper focuses on the S-parameter method that is a basic method for measuring the input impedance of balanced-fed antennas. The basic concept of the method is summarized using the two-port network, and it is shown that the method can be enhanced to the unbalanced antennas using a formulation based on incident and reflected waves. The compensation method that eliminates the influence of a measurement jig and the application of the S-parameter method for the measurement of a radiation pattern with reduced unbalanced currents are explained. Further, application of the method for measuring the reflection and coupling coefficients of multiple antennas is introduced. The measured results of the input impedance of a dipole antenna, radiation patterns of a helical antenna on a small housing, and S-parameters of multiple antennas on a small housing are examined, and the measured results obtained with the S-parameter method are verified.},
keywords={},
doi={10.1587/transcom.E97.B.2011},
ISSN={1745-1345},
month={October},}

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TY - JOUR
TI - S-Parameter Method and Its Application for Antenna Measurements
T2 - IEICE TRANSACTIONS on Communications
SP - 2011
EP - 2021
AU - Takayuki SASAMORI
AU - Toru FUKASAWA
PY - 2014
DO - 10.1587/transcom.E97.B.2011
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2014
AB - This paper focuses on the S-parameter method that is a basic method for measuring the input impedance of balanced-fed antennas. The basic concept of the method is summarized using the two-port network, and it is shown that the method can be enhanced to the unbalanced antennas using a formulation based on incident and reflected waves. The compensation method that eliminates the influence of a measurement jig and the application of the S-parameter method for the measurement of a radiation pattern with reduced unbalanced currents are explained. Further, application of the method for measuring the reflection and coupling coefficients of multiple antennas is introduced. The measured results of the input impedance of a dipole antenna, radiation patterns of a helical antenna on a small housing, and S-parameters of multiple antennas on a small housing are examined, and the measured results obtained with the S-parameter method are verified.
ER -