Bandwidth enhancement of 2-D Leaky-wave antennas with double-layer periodic surfaces

Carolina Mateo-Segura; Alexandros P. Feresidis; George Goussetis

doi:10.1109/TAP.2013.2292076

Bandwidth enhancement of 2-D Leaky-wave antennas with double-layer periodic surfaces

Carolina Mateo-Segura^*, Alexandros P. Feresidis, George Goussetis

^*Corresponding author for this work

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

79 Citations (Scopus)

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Abstract

Broadband high-gain 2-D Fabry-Perot (FP) leaky-wave antennas (LWAs) consisting of two periodic metallodielectric arrays over a ground plane are presented. Full-wave method of moments (MoM) is employed for the estimation of the near fields upon plane wave illumination and the extraction of the far field directivity and radiation patterns of the LWA. This yields a fast and rigorous tool for the characterization of this type of antennas. Qualitative design guidelines to tailor the antenna directivity bandwidth are provided for the first time based on a detailed analysis of the excited modes. Numerical examples are given to demonstrate the technique and prove the improvement in the antenna bandwidth. The proposed antenna exhibits a six-fold bandwidth improvement compared with the single array LWA with the same directivity. Simulated and experimental results from a finite size antenna prototype are presented.

Original language	English
Pages (from-to)	586-593
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	62
Issue number	2
DOIs	https://doi.org/10.1109/TAP.2013.2292076
Publication status	Published - Feb 2014

Keywords

Broadband antennas
high directive antennas
leaky-wave antennas (LWAs)
periodic surfaces
FABRY-PEROT CAVITY
PRINTED-CIRCUIT ANTENNAS
1-D EBG ANTENNA
GAIN ENHANCEMENT
RADIATION BANDWIDTH
FSS SUPERSTRATE
DESIGN
BAND
SIZE

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10.1109/TAP.2013.2292076

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title = "Bandwidth enhancement of 2-D Leaky-wave antennas with double-layer periodic surfaces",

abstract = "Broadband high-gain 2-D Fabry-Perot (FP) leaky-wave antennas (LWAs) consisting of two periodic metallodielectric arrays over a ground plane are presented. Full-wave method of moments (MoM) is employed for the estimation of the near fields upon plane wave illumination and the extraction of the far field directivity and radiation patterns of the LWA. This yields a fast and rigorous tool for the characterization of this type of antennas. Qualitative design guidelines to tailor the antenna directivity bandwidth are provided for the first time based on a detailed analysis of the excited modes. Numerical examples are given to demonstrate the technique and prove the improvement in the antenna bandwidth. The proposed antenna exhibits a six-fold bandwidth improvement compared with the single array LWA with the same directivity. Simulated and experimental results from a finite size antenna prototype are presented.",

keywords = "Broadband antennas, high directive antennas, leaky-wave antennas (LWAs), periodic surfaces, FABRY-PEROT CAVITY, PRINTED-CIRCUIT ANTENNAS, 1-D EBG ANTENNA, GAIN ENHANCEMENT, RADIATION BANDWIDTH, FSS SUPERSTRATE, DESIGN, BAND, SIZE",

author = "Carolina Mateo-Segura and Feresidis, {Alexandros P.} and George Goussetis",

note = "INSPEC Accession Number: 14078976",

year = "2014",

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doi = "10.1109/TAP.2013.2292076",

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AU - Mateo-Segura, Carolina

AU - Feresidis, Alexandros P.

AU - Goussetis, George

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PY - 2014/2

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N2 - Broadband high-gain 2-D Fabry-Perot (FP) leaky-wave antennas (LWAs) consisting of two periodic metallodielectric arrays over a ground plane are presented. Full-wave method of moments (MoM) is employed for the estimation of the near fields upon plane wave illumination and the extraction of the far field directivity and radiation patterns of the LWA. This yields a fast and rigorous tool for the characterization of this type of antennas. Qualitative design guidelines to tailor the antenna directivity bandwidth are provided for the first time based on a detailed analysis of the excited modes. Numerical examples are given to demonstrate the technique and prove the improvement in the antenna bandwidth. The proposed antenna exhibits a six-fold bandwidth improvement compared with the single array LWA with the same directivity. Simulated and experimental results from a finite size antenna prototype are presented.

AB - Broadband high-gain 2-D Fabry-Perot (FP) leaky-wave antennas (LWAs) consisting of two periodic metallodielectric arrays over a ground plane are presented. Full-wave method of moments (MoM) is employed for the estimation of the near fields upon plane wave illumination and the extraction of the far field directivity and radiation patterns of the LWA. This yields a fast and rigorous tool for the characterization of this type of antennas. Qualitative design guidelines to tailor the antenna directivity bandwidth are provided for the first time based on a detailed analysis of the excited modes. Numerical examples are given to demonstrate the technique and prove the improvement in the antenna bandwidth. The proposed antenna exhibits a six-fold bandwidth improvement compared with the single array LWA with the same directivity. Simulated and experimental results from a finite size antenna prototype are presented.

KW - Broadband antennas

KW - high directive antennas

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KW - periodic surfaces

KW - FABRY-PEROT CAVITY

KW - PRINTED-CIRCUIT ANTENNAS

KW - 1-D EBG ANTENNA

KW - GAIN ENHANCEMENT

KW - RADIATION BANDWIDTH

KW - FSS SUPERSTRATE

KW - DESIGN

KW - BAND

KW - SIZE

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DO - 10.1109/TAP.2013.2292076

M3 - Article

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 2

ER -

Bandwidth enhancement of 2-D Leaky-wave antennas with double-layer periodic surfaces

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Keywords

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