Design of Circularly Polarized and Electrically Small Antenna with Omnidirectional Radiation Pattern

Kittima LERTSAKWIMARN; Chuwong PHONGCHAROENPANICH; Takeshi FUKUSAKO

doi:10.1587/transcom.E97.B.2739

Design of Circularly Polarized and Electrically Small Antenna with Omnidirectional Radiation Pattern

Kittima LERTSAKWIMARN, Chuwong PHONGCHAROENPANICH, Takeshi FUKUSAKO

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This paper presents an electrically small and circularly polarized antenna with an omnidirectional radiation pattern. The antenna consists of a horizontal loop element enclosed by two U-shaped elements and a vertical element from the feeding point. The radiation pattern of the circular polarization is omnidirectional and has a maximum gain of -2dBic in parallel to the ground plane at the 900MHz band. The antenna dimensions are 48 × 20 × 13.8mm (0.14λ × 0.06λ × 0.04λ) with ka =0.476 (i.e. < 0.5), where k is the wavenumber at the resonant frequency and a is the radius of a sphere surrounding the antenna. The dimension corresponds to the definition of an electrically small antenna. The omnidirectional circularly polarized pattern of a prototype antenna shows good agreement with that of the simulation. In addition, this paper introduces a mechanism that generates omnidirectional circular polarization from electrically small antennas.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.12 pp.2739-2746

Publication Date: 2014/12/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.2739

Type of Manuscript: PAPER

Category: Antennas and Propagation

Authors

Kittima LERTSAKWIMARN
  King Mongkut's Institute of Technology Ladkrabang
Chuwong PHONGCHAROENPANICH
  King Mongkut's Institute of Technology Ladkrabang
Takeshi FUKUSAKO
  Kumamoto University

Keyword

electrically small antenna, circular polarization, omnidirectional radiation pattern

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Kittima LERTSAKWIMARN, Chuwong PHONGCHAROENPANICH, Takeshi FUKUSAKO, "Design of Circularly Polarized and Electrically Small Antenna with Omnidirectional Radiation Pattern" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 12, pp. 2739-2746, December 2014, doi: 10.1587/transcom.E97.B.2739.
Abstract: This paper presents an electrically small and circularly polarized antenna with an omnidirectional radiation pattern. The antenna consists of a horizontal loop element enclosed by two U-shaped elements and a vertical element from the feeding point. The radiation pattern of the circular polarization is omnidirectional and has a maximum gain of -2dBic in parallel to the ground plane at the 900MHz band. The antenna dimensions are 48 × 20 × 13.8mm (0.14λ × 0.06λ × 0.04λ) with ka =0.476 (i.e. < 0.5), where k is the wavenumber at the resonant frequency and a is the radius of a sphere surrounding the antenna. The dimension corresponds to the definition of an electrically small antenna. The omnidirectional circularly polarized pattern of a prototype antenna shows good agreement with that of the simulation. In addition, this paper introduces a mechanism that generates omnidirectional circular polarization from electrically small antennas.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.2739/_p

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@ARTICLE{e97-b_12_2739,
author={Kittima LERTSAKWIMARN, Chuwong PHONGCHAROENPANICH, Takeshi FUKUSAKO, },
journal={IEICE TRANSACTIONS on Communications},
title={Design of Circularly Polarized and Electrically Small Antenna with Omnidirectional Radiation Pattern},
year={2014},
volume={E97-B},
number={12},
pages={2739-2746},
abstract={This paper presents an electrically small and circularly polarized antenna with an omnidirectional radiation pattern. The antenna consists of a horizontal loop element enclosed by two U-shaped elements and a vertical element from the feeding point. The radiation pattern of the circular polarization is omnidirectional and has a maximum gain of -2dBic in parallel to the ground plane at the 900MHz band. The antenna dimensions are 48 × 20 × 13.8mm (0.14λ × 0.06λ × 0.04λ) with ka =0.476 (i.e. < 0.5), where k is the wavenumber at the resonant frequency and a is the radius of a sphere surrounding the antenna. The dimension corresponds to the definition of an electrically small antenna. The omnidirectional circularly polarized pattern of a prototype antenna shows good agreement with that of the simulation. In addition, this paper introduces a mechanism that generates omnidirectional circular polarization from electrically small antennas.},
keywords={},
doi={10.1587/transcom.E97.B.2739},
ISSN={1745-1345},
month={December},}

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TY - JOUR
TI - Design of Circularly Polarized and Electrically Small Antenna with Omnidirectional Radiation Pattern
T2 - IEICE TRANSACTIONS on Communications
SP - 2739
EP - 2746
AU - Kittima LERTSAKWIMARN
AU - Chuwong PHONGCHAROENPANICH
AU - Takeshi FUKUSAKO
PY - 2014
DO - 10.1587/transcom.E97.B.2739
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2014
AB - This paper presents an electrically small and circularly polarized antenna with an omnidirectional radiation pattern. The antenna consists of a horizontal loop element enclosed by two U-shaped elements and a vertical element from the feeding point. The radiation pattern of the circular polarization is omnidirectional and has a maximum gain of -2dBic in parallel to the ground plane at the 900MHz band. The antenna dimensions are 48 × 20 × 13.8mm (0.14λ × 0.06λ × 0.04λ) with ka =0.476 (i.e. < 0.5), where k is the wavenumber at the resonant frequency and a is the radius of a sphere surrounding the antenna. The dimension corresponds to the definition of an electrically small antenna. The omnidirectional circularly polarized pattern of a prototype antenna shows good agreement with that of the simulation. In addition, this paper introduces a mechanism that generates omnidirectional circular polarization from electrically small antennas.
ER -