Modified square loop antennas with an increased axial-ratio bandwidth

Kazuhide Hirose; Keijiro Ishii; Hisamatsu Nakano

doi:10.1109/APS/URSI47566.2021.9703722

Modified square loop antennas with an increased axial-ratio bandwidth

Kazuhide Hirose, Keijiro Ishii, Hisamatsu Nakano

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Using the method of moments, we analyze two types of loop antennas; they have loop circumferences of 1λ and 2λ ( λ : wavelength). Each loop is located above a ground plane at height h , and a 3dB axial-ratio bandwidth versus h is evaluated. It is found that the 1λ and 2λ loops have maximum bandwidths of 3% and 2% at h=0.18λ, respectively. Using 1λ and 2λ loops, we further design a double-loop antenna. It is revealed that the antenna shows a bandwidth of 3%, which is three times as wide as that of a conventional double-loop antenna.

Original language	English
Title of host publication	2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)
Publisher	Publ by IEEE
ISBN (Electronic)	987-1-7281-4670-6
ISBN (Print)	978-1-7281-4671-3
DOIs	https://doi.org/10.1109/APS/URSI47566.2021.9703722
Publication status	Published - 2021 Dec 10
Event	2021 IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting(APS/URSI) - Singapore, Singapore, Singapore, Singapore Duration: 2021 Dec 4 → 2021 Dec 10

Conference

Conference	2021 IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting(APS/URSI)
Country/Territory	Singapore
City	Singapore
Period	21/12/4 → 21/12/10

Keywords

loop antenna
Double loop antenna
Circular polarization
Wideband antenna
Method of moments
Antennas
Bandwidth
meetings

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/APS/URSI47566.2021.9703722

Cite this

Hirose, K, Ishii, K & Nakano, H 2021, Modified square loop antennas with an increased axial-ratio bandwidth. in 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI). Publ by IEEE, 2021 IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting(APS/URSI), Singapore, Singapore, 21/12/4. https://doi.org/10.1109/APS/URSI47566.2021.9703722

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title = "Modified square loop antennas with an increased axial-ratio bandwidth",

abstract = "Using the method of moments, we analyze two types of loop antennas; they have loop circumferences of 1λ and 2λ ( λ : wavelength). Each loop is located above a ground plane at height h , and a 3dB axial-ratio bandwidth versus h is evaluated. It is found that the 1λ and 2λ loops have maximum bandwidths of 3% and 2% at h=0.18λ, respectively. Using 1λ and 2λ loops, we further design a double-loop antenna. It is revealed that the antenna shows a bandwidth of 3%, which is three times as wide as that of a conventional double-loop antenna.",

keywords = "loop antenna, Double loop antenna, Circular polarization, Wideband antenna, Method of moments, Antennas, Bandwidth, meetings",

author = "Kazuhide Hirose and Keijiro Ishii and Hisamatsu Nakano",

year = "2021",

month = dec,

day = "10",

doi = "10.1109/APS/URSI47566.2021.9703722",

language = "English",

isbn = "978-1-7281-4671-3",

booktitle = "2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)",

publisher = "Publ by IEEE",

note = "2021 IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting(APS/URSI) ; Conference date: 04-12-2021 Through 10-12-2021",

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TY - GEN

T1 - Modified square loop antennas with an increased axial-ratio bandwidth

AU - Hirose, Kazuhide

AU - Ishii, Keijiro

AU - Nakano, Hisamatsu

PY - 2021/12/10

Y1 - 2021/12/10

N2 - Using the method of moments, we analyze two types of loop antennas; they have loop circumferences of 1λ and 2λ ( λ : wavelength). Each loop is located above a ground plane at height h , and a 3dB axial-ratio bandwidth versus h is evaluated. It is found that the 1λ and 2λ loops have maximum bandwidths of 3% and 2% at h=0.18λ, respectively. Using 1λ and 2λ loops, we further design a double-loop antenna. It is revealed that the antenna shows a bandwidth of 3%, which is three times as wide as that of a conventional double-loop antenna.

AB - Using the method of moments, we analyze two types of loop antennas; they have loop circumferences of 1λ and 2λ ( λ : wavelength). Each loop is located above a ground plane at height h , and a 3dB axial-ratio bandwidth versus h is evaluated. It is found that the 1λ and 2λ loops have maximum bandwidths of 3% and 2% at h=0.18λ, respectively. Using 1λ and 2λ loops, we further design a double-loop antenna. It is revealed that the antenna shows a bandwidth of 3%, which is three times as wide as that of a conventional double-loop antenna.

KW - loop antenna

KW - Double loop antenna

KW - Circular polarization

KW - Wideband antenna

KW - Method of moments

KW - Antennas

KW - Bandwidth

KW - meetings

U2 - 10.1109/APS/URSI47566.2021.9703722

DO - 10.1109/APS/URSI47566.2021.9703722

M3 - Conference contribution

SN - 978-1-7281-4671-3

BT - 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)

PB - Publ by IEEE

T2 - 2021 IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting(APS/URSI)

Y2 - 4 December 2021 through 10 December 2021

ER -

Modified square loop antennas with an increased axial-ratio bandwidth

Abstract

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this