A Dual-ISM-Band Antenna of Small Size Using a Spiral Structure With Parasitic Element

J. L. Buckley; K. G. McCarthy; L. Loizou; B. O'Flynn; C. O'Mathuna

doi:10.1109/LAWP.2015.2465831

A Dual-ISM-Band Antenna of Small Size Using a Spiral Structure With Parasitic Element

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Abstract

This letter presents a compact, single-feed, dual-band antenna covering both the 433-MHz and 2.45-GHz Industrial Scientific and Medical (ISM) bands. The antenna has small dimensions of 51 × 28 mm². A square-spiral resonant element is printed on the top layer for the 433-MHz band. The remaining space within the spiral is used to introduce an additional parasitic monopole element on the bottom layer that is resonant at 2.45 GHz. Measured results show that the antenna has a 10-dB return-loss bandwidth of 2 MHz at 433 MHz and 132 MHz at 2.45 GHz, respectively. The antenna has omnidirectional radiation characteristics with a peak realized gain (measured) of -11.5 dBi at 433 MHz and + 0.5 dBi at 2.45 GHz, respectively.

Original language	English
Article number	7181661
Pages (from-to)	630-633
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	15
DOIs	https://doi.org/10.1109/LAWP.2015.2465831
Publication status	Published - 2016

Keywords

Antenna
compact
dual-band
inverted-F antenna (IFA)
quality of service (QoS)

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10.1109/LAWP.2015.2465831

https://hdl.handle.net/10468/9528Licence: CC BY-NC-ND

Cite this

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title = "A Dual-ISM-Band Antenna of Small Size Using a Spiral Structure With Parasitic Element",

abstract = "This letter presents a compact, single-feed, dual-band antenna covering both the 433-MHz and 2.45-GHz Industrial Scientific and Medical (ISM) bands. The antenna has small dimensions of 51 × 28 mm2. A square-spiral resonant element is printed on the top layer for the 433-MHz band. The remaining space within the spiral is used to introduce an additional parasitic monopole element on the bottom layer that is resonant at 2.45 GHz. Measured results show that the antenna has a 10-dB return-loss bandwidth of 2 MHz at 433 MHz and 132 MHz at 2.45 GHz, respectively. The antenna has omnidirectional radiation characteristics with a peak realized gain (measured) of -11.5 dBi at 433 MHz and + 0.5 dBi at 2.45 GHz, respectively.",

keywords = "Antenna, compact, dual-band, inverted-F antenna (IFA), quality of service (QoS)",

author = "Buckley, \{J. L.\} and McCarthy, \{K. G.\} and L. Loizou and B. O'Flynn and C. O'Mathuna",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.",

year = "2016",

doi = "10.1109/LAWP.2015.2465831",

language = "English",

volume = "15",

pages = "630--633",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - A Dual-ISM-Band Antenna of Small Size Using a Spiral Structure With Parasitic Element

AU - Buckley, J. L.

AU - McCarthy, K. G.

AU - Loizou, L.

AU - O'Flynn, B.

AU - O'Mathuna, C.

PY - 2016

Y1 - 2016

N2 - This letter presents a compact, single-feed, dual-band antenna covering both the 433-MHz and 2.45-GHz Industrial Scientific and Medical (ISM) bands. The antenna has small dimensions of 51 × 28 mm2. A square-spiral resonant element is printed on the top layer for the 433-MHz band. The remaining space within the spiral is used to introduce an additional parasitic monopole element on the bottom layer that is resonant at 2.45 GHz. Measured results show that the antenna has a 10-dB return-loss bandwidth of 2 MHz at 433 MHz and 132 MHz at 2.45 GHz, respectively. The antenna has omnidirectional radiation characteristics with a peak realized gain (measured) of -11.5 dBi at 433 MHz and + 0.5 dBi at 2.45 GHz, respectively.

AB - This letter presents a compact, single-feed, dual-band antenna covering both the 433-MHz and 2.45-GHz Industrial Scientific and Medical (ISM) bands. The antenna has small dimensions of 51 × 28 mm2. A square-spiral resonant element is printed on the top layer for the 433-MHz band. The remaining space within the spiral is used to introduce an additional parasitic monopole element on the bottom layer that is resonant at 2.45 GHz. Measured results show that the antenna has a 10-dB return-loss bandwidth of 2 MHz at 433 MHz and 132 MHz at 2.45 GHz, respectively. The antenna has omnidirectional radiation characteristics with a peak realized gain (measured) of -11.5 dBi at 433 MHz and + 0.5 dBi at 2.45 GHz, respectively.

KW - Antenna

KW - compact

KW - dual-band

KW - inverted-F antenna (IFA)

KW - quality of service (QoS)

UR - https://www.scopus.com/pages/publications/84963837899

U2 - 10.1109/LAWP.2015.2465831

DO - 10.1109/LAWP.2015.2465831

M3 - Article

AN - SCOPUS:84963837899

SN - 1536-1225

VL - 15

SP - 630

EP - 633

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

M1 - 7181661

ER -

A Dual-ISM-Band Antenna of Small Size Using a Spiral Structure With Parasitic Element

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Keywords

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