A Compact Wideband Dielectric Resonator Antenna with a Meandered Slot Ring and Cavity Backing

Symon Podilchak; Jonathan C. Johnstone; Mathieu Caillet; Michel Clénet; Yahia M. M. Antar

doi:10.1109/LAWP.2015.2480547

A Compact Wideband Dielectric Resonator Antenna with a Meandered Slot Ring and Cavity Backing

Symon Podilchak, Jonathan C. Johnstone, Mathieu Caillet, Michel Clénet, Yahia M. M. Antar

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

50 Citations (Scopus)

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Abstract

We design a compact cavity-backed antenna structure where a dielectric resonator (DR) element is surrounded by a meandered circular slot ring to enhance radiation efficiency. The DR for the antenna is cylindrical in shape and four degenerateHE11 modes are excited and driven by four, quadrature fed aperture coupled slots. Such a compact implementation hybridizes operation of the DR with the minturized ring as well as the four aperture coupled slots for circular polarization. Measured realized gain values are greater than 5 dBic from 1.14 GHz to 1.55 GHz defining a bandwidth of more than 30%. In addition, the half-power and 3 dB axial ratio beamwidths were measured to be more than 100 and 200, respectively.The proposed design technique to employ such a secondary meandered slot ring may also be useful to improve antenna gain, bandwidth, and efficiency for other antenna and array structures.

Original language	English
Pages (from-to)	909-913
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	15
Early online date	22 Sept 2015
DOIs	https://doi.org/10.1109/LAWP.2015.2480547
Publication status	Published - 2016

Keywords

Broadband antennas
circular polarization
compact antennas
dielectric resonator
slot antenna

ASJC Scopus subject areas

General Engineering

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10.1109/LAWP.2015.2480547

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Cite this

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title = "A Compact Wideband Dielectric Resonator Antenna with a Meandered Slot Ring and Cavity Backing",

abstract = "We design a compact cavity-backed antenna structure where a dielectric resonator (DR) element is surrounded by a meandered circular slot ring to enhance radiation efficiency. The DR for the antenna is cylindrical in shape and four degenerateHE11 modes are excited and driven by four, quadrature fed aperture coupled slots. Such a compact implementation hybridizes operation of the DR with the minturized ring as well as the four aperture coupled slots for circular polarization. Measured realized gain values are greater than 5 dBic from 1.14 GHz to 1.55 GHz defining a bandwidth of more than 30%. In addition, the half-power and 3 dB axial ratio beamwidths were measured to be more than 100 and 200, respectively.The proposed design technique to employ such a secondary meandered slot ring may also be useful to improve antenna gain, bandwidth, and efficiency for other antenna and array structures.",

keywords = "Broadband antennas, circular polarization, compact antennas, dielectric resonator, slot antenna",

author = "Symon Podilchak and Johnstone, {Jonathan C.} and Mathieu Caillet and Michel Cl{\'e}net and Antar, {Yahia M. M.}",

year = "2016",

doi = "10.1109/LAWP.2015.2480547",

language = "English",

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T1 - A Compact Wideband Dielectric Resonator Antenna with a Meandered Slot Ring and Cavity Backing

AU - Podilchak, Symon

AU - Johnstone, Jonathan C.

AU - Caillet, Mathieu

AU - Clénet, Michel

AU - Antar, Yahia M. M.

PY - 2016

Y1 - 2016

N2 - We design a compact cavity-backed antenna structure where a dielectric resonator (DR) element is surrounded by a meandered circular slot ring to enhance radiation efficiency. The DR for the antenna is cylindrical in shape and four degenerateHE11 modes are excited and driven by four, quadrature fed aperture coupled slots. Such a compact implementation hybridizes operation of the DR with the minturized ring as well as the four aperture coupled slots for circular polarization. Measured realized gain values are greater than 5 dBic from 1.14 GHz to 1.55 GHz defining a bandwidth of more than 30%. In addition, the half-power and 3 dB axial ratio beamwidths were measured to be more than 100 and 200, respectively.The proposed design technique to employ such a secondary meandered slot ring may also be useful to improve antenna gain, bandwidth, and efficiency for other antenna and array structures.

AB - We design a compact cavity-backed antenna structure where a dielectric resonator (DR) element is surrounded by a meandered circular slot ring to enhance radiation efficiency. The DR for the antenna is cylindrical in shape and four degenerateHE11 modes are excited and driven by four, quadrature fed aperture coupled slots. Such a compact implementation hybridizes operation of the DR with the minturized ring as well as the four aperture coupled slots for circular polarization. Measured realized gain values are greater than 5 dBic from 1.14 GHz to 1.55 GHz defining a bandwidth of more than 30%. In addition, the half-power and 3 dB axial ratio beamwidths were measured to be more than 100 and 200, respectively.The proposed design technique to employ such a secondary meandered slot ring may also be useful to improve antenna gain, bandwidth, and efficiency for other antenna and array structures.

KW - Broadband antennas

KW - circular polarization

KW - compact antennas

KW - dielectric resonator

KW - slot antenna

U2 - 10.1109/LAWP.2015.2480547

DO - 10.1109/LAWP.2015.2480547

M3 - Article

SN - 1536-1225

VL - 15

SP - 909

EP - 913

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

ER -

A Compact Wideband Dielectric Resonator Antenna with a Meandered Slot Ring and Cavity Backing

Abstract

Keywords

ASJC Scopus subject areas

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