A study of radio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system

Atsuya Ando, Akira Kondo, Shuji Kubota

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper proposes a dual-polarized omnidirectional antenna for base-station antennas that are mounted on the rooftops of buildings. The antenna suppresses the degradation in the received-signal level due to the inclination of mobile antennas in the personal handy-phone system (PHS). The proposed polarization-diversity antenna is comprised of a dielectric-loaded slotted-cylinder antenna for horizontally polarized waves and a conventional collinear array antenna for vertically polarized waves in a height-diversity configuration. The structure of the proposed antenna and its fundamental characteristics, such as the input impedance and radiation pattern, are shown. The change in the radio zone length (RZL) due to the inclination angle of the mobile antenna is measured to estimate the improvement offered by the proposed antenna in an urban area. It is shown that the RZLs of the collinear antennas in line-of-sight (LOS) environments are decreased by 73% when the mobile antenna is inclined at 90., whereas the proposed olarization-diversity antenna restrains the degradation to approximately 20%, regardless of the inclination angle without downtilt and from 20% to 40% for a 15. downtilt. The RZLs of the collinear tilt antennas in non-LOS (NLOS) environments are below approximately 20%, compared to those of the collinear tilt antennas for the LOS route. We show that the RZLs in the NLOS environments are short compared to those for the LOS environments in microcell systems such as PHS with a high-elevation base station, even when the polarization-diversity technique is applied to the base station.

Original languageEnglish
Pages (from-to)2-10
Number of pages9
JournalIEEE Transactions on Vehicular Technology
Volume57
Issue number1
DOIs
Publication statusPublished - 2008 Jan
Externally publishedYes

Fingerprint

Omnidirectional antennas
Antennas
Mobile antennas
Base stations
Polarization
Degradation
Antenna arrays

Keywords

  • Dual-polarized omnidirectional antennas
  • Personal handy-phone system (PHS)
  • Polarization diversity
  • Radio zone length (RZL) versus inclination of mobile antenna

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

A study of radio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system. / Ando, Atsuya; Kondo, Akira; Kubota, Shuji.

In: IEEE Transactions on Vehicular Technology, Vol. 57, No. 1, 01.2008, p. 2-10.

Research output: Contribution to journalArticle

@article{0f168857f9274cc6b1b684f9d4c90728,
title = "A study of radio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system",
abstract = "This paper proposes a dual-polarized omnidirectional antenna for base-station antennas that are mounted on the rooftops of buildings. The antenna suppresses the degradation in the received-signal level due to the inclination of mobile antennas in the personal handy-phone system (PHS). The proposed polarization-diversity antenna is comprised of a dielectric-loaded slotted-cylinder antenna for horizontally polarized waves and a conventional collinear array antenna for vertically polarized waves in a height-diversity configuration. The structure of the proposed antenna and its fundamental characteristics, such as the input impedance and radiation pattern, are shown. The change in the radio zone length (RZL) due to the inclination angle of the mobile antenna is measured to estimate the improvement offered by the proposed antenna in an urban area. It is shown that the RZLs of the collinear antennas in line-of-sight (LOS) environments are decreased by 73{\%} when the mobile antenna is inclined at 90., whereas the proposed olarization-diversity antenna restrains the degradation to approximately 20{\%}, regardless of the inclination angle without downtilt and from 20{\%} to 40{\%} for a 15. downtilt. The RZLs of the collinear tilt antennas in non-LOS (NLOS) environments are below approximately 20{\%}, compared to those of the collinear tilt antennas for the LOS route. We show that the RZLs in the NLOS environments are short compared to those for the LOS environments in microcell systems such as PHS with a high-elevation base station, even when the polarization-diversity technique is applied to the base station.",
keywords = "Dual-polarized omnidirectional antennas, Personal handy-phone system (PHS), Polarization diversity, Radio zone length (RZL) versus inclination of mobile antenna",
author = "Atsuya Ando and Akira Kondo and Shuji Kubota",
year = "2008",
month = "1",
doi = "10.1109/TVT.2007.905432",
language = "English",
volume = "57",
pages = "2--10",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1",

}

TY - JOUR

T1 - A study of radio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system

AU - Ando, Atsuya

AU - Kondo, Akira

AU - Kubota, Shuji

PY - 2008/1

Y1 - 2008/1

N2 - This paper proposes a dual-polarized omnidirectional antenna for base-station antennas that are mounted on the rooftops of buildings. The antenna suppresses the degradation in the received-signal level due to the inclination of mobile antennas in the personal handy-phone system (PHS). The proposed polarization-diversity antenna is comprised of a dielectric-loaded slotted-cylinder antenna for horizontally polarized waves and a conventional collinear array antenna for vertically polarized waves in a height-diversity configuration. The structure of the proposed antenna and its fundamental characteristics, such as the input impedance and radiation pattern, are shown. The change in the radio zone length (RZL) due to the inclination angle of the mobile antenna is measured to estimate the improvement offered by the proposed antenna in an urban area. It is shown that the RZLs of the collinear antennas in line-of-sight (LOS) environments are decreased by 73% when the mobile antenna is inclined at 90., whereas the proposed olarization-diversity antenna restrains the degradation to approximately 20%, regardless of the inclination angle without downtilt and from 20% to 40% for a 15. downtilt. The RZLs of the collinear tilt antennas in non-LOS (NLOS) environments are below approximately 20%, compared to those of the collinear tilt antennas for the LOS route. We show that the RZLs in the NLOS environments are short compared to those for the LOS environments in microcell systems such as PHS with a high-elevation base station, even when the polarization-diversity technique is applied to the base station.

AB - This paper proposes a dual-polarized omnidirectional antenna for base-station antennas that are mounted on the rooftops of buildings. The antenna suppresses the degradation in the received-signal level due to the inclination of mobile antennas in the personal handy-phone system (PHS). The proposed polarization-diversity antenna is comprised of a dielectric-loaded slotted-cylinder antenna for horizontally polarized waves and a conventional collinear array antenna for vertically polarized waves in a height-diversity configuration. The structure of the proposed antenna and its fundamental characteristics, such as the input impedance and radiation pattern, are shown. The change in the radio zone length (RZL) due to the inclination angle of the mobile antenna is measured to estimate the improvement offered by the proposed antenna in an urban area. It is shown that the RZLs of the collinear antennas in line-of-sight (LOS) environments are decreased by 73% when the mobile antenna is inclined at 90., whereas the proposed olarization-diversity antenna restrains the degradation to approximately 20%, regardless of the inclination angle without downtilt and from 20% to 40% for a 15. downtilt. The RZLs of the collinear tilt antennas in non-LOS (NLOS) environments are below approximately 20%, compared to those of the collinear tilt antennas for the LOS route. We show that the RZLs in the NLOS environments are short compared to those for the LOS environments in microcell systems such as PHS with a high-elevation base station, even when the polarization-diversity technique is applied to the base station.

KW - Dual-polarized omnidirectional antennas

KW - Personal handy-phone system (PHS)

KW - Polarization diversity

KW - Radio zone length (RZL) versus inclination of mobile antenna

UR - http://www.scopus.com/inward/record.url?scp=39549116568&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39549116568&partnerID=8YFLogxK

U2 - 10.1109/TVT.2007.905432

DO - 10.1109/TVT.2007.905432

M3 - Article

VL - 57

SP - 2

EP - 10

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

IS - 1

ER -