A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure

Affan A. Baba; Raheel M. Hashmi; Mohsen Asadnia; Ladislau Matekovits; Karu P. Esselle

doi:10.3390/mi10050308

A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure

Affan A. Baba, Raheel M. Hashmi, Mohsen Asadnia, Ladislau Matekovits, Karu P. Esselle

School of Engineering

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

5 Citations (Scopus)

67 Downloads (Pure)

Abstract

This paper presents a new planar feeding structure for wideband resonant-cavity antennas (RCAs). The feeding structure consists of two stacked dielectric slabs with an air-gap in between. A U-shaped slot, etched in the top metal-cladding over the upper dielectric slab, is fed by a planar stripline printed on the back side of the dielectric slab. The lower dielectric slab backed by a ground plane, is used to reduce back radiation. To validate the wideband performance of the new structure, in an RCA configuration, it was integrated with a wideband all-dielectric single-layer partially reflecting superstructure (PRS) with a transverse permittivity gradient (TPG). The single-layer RCA fed by the U-slot feeding structure demonstrated a peak directivity of 18.5 dBi with a 3 dB directivity bandwidth of 32%. An RCA prototype was fabricated and experimental results are presented.

Original language	English
Article number	308
Pages (from-to)	1-9
Number of pages	9
Journal	Micromachines
Volume	10
Issue number	5
DOIs	https://doi.org/10.3390/mi10050308
Publication status	Published - May 2019

Bibliographical note

Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

high-gain
compact
wideband
resonant cavity
Fabry–Perot cavity
cavity resonator
EBG resonator

Access to Document

10.3390/mi10050308Licence: CC BY

Publisher version (open access)Final published version, 2.7 MBLicence: CC BY

Cite this

@article{58bd97b0127c401cb877cde02151ec16,

title = "A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure",

abstract = "This paper presents a new planar feeding structure for wideband resonant-cavity antennas (RCAs). The feeding structure consists of two stacked dielectric slabs with an air-gap in between. A U-shaped slot, etched in the top metal-cladding over the upper dielectric slab, is fed by a planar stripline printed on the back side of the dielectric slab. The lower dielectric slab backed by a ground plane, is used to reduce back radiation. To validate the wideband performance of the new structure, in an RCA configuration, it was integrated with a wideband all-dielectric single-layer partially reflecting superstructure (PRS) with a transverse permittivity gradient (TPG). The single-layer RCA fed by the U-slot feeding structure demonstrated a peak directivity of 18.5 dBi with a 3 dB directivity bandwidth of 32%. An RCA prototype was fabricated and experimental results are presented.",

keywords = "high-gain, compact, wideband, resonant cavity, Fabry–Perot cavity, cavity resonator, EBG resonator",

author = "Baba, {Affan A.} and Hashmi, {Raheel M.} and Mohsen Asadnia and Ladislau Matekovits and Esselle, {Karu P.}",

note = "Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2019",

month = may,

doi = "10.3390/mi10050308",

language = "English",

volume = "10",

pages = "1--9",

journal = "Micromachines",

issn = "2072-666X",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "5",

}

TY - JOUR

T1 - A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure

AU - Baba, Affan A.

AU - Hashmi, Raheel M.

AU - Asadnia, Mohsen

AU - Matekovits, Ladislau

AU - Esselle, Karu P.

N1 - Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2019/5

Y1 - 2019/5

N2 - This paper presents a new planar feeding structure for wideband resonant-cavity antennas (RCAs). The feeding structure consists of two stacked dielectric slabs with an air-gap in between. A U-shaped slot, etched in the top metal-cladding over the upper dielectric slab, is fed by a planar stripline printed on the back side of the dielectric slab. The lower dielectric slab backed by a ground plane, is used to reduce back radiation. To validate the wideband performance of the new structure, in an RCA configuration, it was integrated with a wideband all-dielectric single-layer partially reflecting superstructure (PRS) with a transverse permittivity gradient (TPG). The single-layer RCA fed by the U-slot feeding structure demonstrated a peak directivity of 18.5 dBi with a 3 dB directivity bandwidth of 32%. An RCA prototype was fabricated and experimental results are presented.

AB - This paper presents a new planar feeding structure for wideband resonant-cavity antennas (RCAs). The feeding structure consists of two stacked dielectric slabs with an air-gap in between. A U-shaped slot, etched in the top metal-cladding over the upper dielectric slab, is fed by a planar stripline printed on the back side of the dielectric slab. The lower dielectric slab backed by a ground plane, is used to reduce back radiation. To validate the wideband performance of the new structure, in an RCA configuration, it was integrated with a wideband all-dielectric single-layer partially reflecting superstructure (PRS) with a transverse permittivity gradient (TPG). The single-layer RCA fed by the U-slot feeding structure demonstrated a peak directivity of 18.5 dBi with a 3 dB directivity bandwidth of 32%. An RCA prototype was fabricated and experimental results are presented.

KW - high-gain

KW - compact

KW - wideband

KW - resonant cavity

KW - Fabry–Perot cavity

KW - cavity resonator

KW - EBG resonator

UR - http://purl.org/au-research/grants/arc/DP190103352

UR - http://purl.org/au-research/grants/arc/DP150103242

UR - http://www.scopus.com/inward/record.url?scp=85073668973&partnerID=8YFLogxK

U2 - 10.3390/mi10050308

DO - 10.3390/mi10050308

M3 - Article

C2 - 31067827

SN - 2072-666X

VL - 10

SP - 1

EP - 9

JO - Micromachines

JF - Micromachines

IS - 5

M1 - 308

ER -

A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Wideband Strongly-Truncated Composite Cavity-Resonator Antennas

Thin Antenna Beam Steering Systems with Exceptional Performance

Cite this

A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructure

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Wideband Strongly-Truncated Composite Cavity-Resonator Antennas

Thin Antenna Beam Steering Systems with Exceptional Performance

Cite this