Front-to-back ratio improvement of printed antennas based on electrically small resonators for microwave presence detectors

P. Aguilá; S. Zuffanelli; G. Zamora; F. Paredes; F. Martín; J. Bonache

doi:https://doi.org/10.1049/el.2014.4303

Front-to-back ratio improvement of printed antennas based on electrically small resonators for microwave presence detectors

P. Aguilá, S. Zuffanelli, G. Zamora, F. Paredes, F. Martín, J. Bonache

Research output: Contribution to journal › Article › Research › peer-review

3 Citations (Scopus)

Abstract

© 2015 The Institution of Engineering and Technology. The improvement of the front-to-back ratio (FBR) in low-profile antennas to be used in presence detection devices is explored. The main idea is to use electrically small resonators as radiating elements. This minimises the electric currents in the boundary of the ground plane at the working frequency, thus reducing the backward radiation. The choice of the resonant particle and its electromagnetic properties, along with the antenna structure, are discussed. The simulated results indicate that there is good impedance matching (-18 dB) at the operating frequency (3 GHz) and an excellent FBR of 24 dB. These characteristics are validated experimentally and the FBR is compared with that of a conventional patch antenna.

Original language	English
Pages (from-to)	836-837
Journal	Electronics Letters
Volume	51
Issue number	11
DOIs	https://doi.org/10.1049/el.2014.4303
Publication status	Published - 1 Jan 2015

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title = "Front-to-back ratio improvement of printed antennas based on electrically small resonators for microwave presence detectors",

abstract = "{\textcopyright} 2015 The Institution of Engineering and Technology. The improvement of the front-to-back ratio (FBR) in low-profile antennas to be used in presence detection devices is explored. The main idea is to use electrically small resonators as radiating elements. This minimises the electric currents in the boundary of the ground plane at the working frequency, thus reducing the backward radiation. The choice of the resonant particle and its electromagnetic properties, along with the antenna structure, are discussed. The simulated results indicate that there is good impedance matching (-18 dB) at the operating frequency (3 GHz) and an excellent FBR of 24 dB. These characteristics are validated experimentally and the FBR is compared with that of a conventional patch antenna.",

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AU - Aguilá, P.

AU - Zuffanelli, S.

AU - Zamora, G.

AU - Paredes, F.

AU - Martín, F.

AU - Bonache, J.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - © 2015 The Institution of Engineering and Technology. The improvement of the front-to-back ratio (FBR) in low-profile antennas to be used in presence detection devices is explored. The main idea is to use electrically small resonators as radiating elements. This minimises the electric currents in the boundary of the ground plane at the working frequency, thus reducing the backward radiation. The choice of the resonant particle and its electromagnetic properties, along with the antenna structure, are discussed. The simulated results indicate that there is good impedance matching (-18 dB) at the operating frequency (3 GHz) and an excellent FBR of 24 dB. These characteristics are validated experimentally and the FBR is compared with that of a conventional patch antenna.

AB - © 2015 The Institution of Engineering and Technology. The improvement of the front-to-back ratio (FBR) in low-profile antennas to be used in presence detection devices is explored. The main idea is to use electrically small resonators as radiating elements. This minimises the electric currents in the boundary of the ground plane at the working frequency, thus reducing the backward radiation. The choice of the resonant particle and its electromagnetic properties, along with the antenna structure, are discussed. The simulated results indicate that there is good impedance matching (-18 dB) at the operating frequency (3 GHz) and an excellent FBR of 24 dB. These characteristics are validated experimentally and the FBR is compared with that of a conventional patch antenna.

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DO - https://doi.org/10.1049/el.2014.4303

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EP - 837

JO - Electronics Letters

JF - Electronics Letters

SN - 0013-5194

IS - 11

ER -

Front-to-back ratio improvement of printed antennas based on electrically small resonators for microwave presence detectors

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