Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation

A. A. Baba; R. M. Hashmi; K. P. Esselle

doi:10.1049/el.2015.2694

Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation

A. A. Baba^*, R. M. Hashmi, K. P. Esselle

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62(0)(2). The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR-75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is approximate to 88% over the 3 dB directivity bandwidth.

Original language	English
Pages (from-to)	266-268
Number of pages	3
Journal	Electronics Letters
Volume	52
Issue number	4
DOIs	https://doi.org/10.1049/el.2015.2694
Publication status	Published - 18 Feb 2016

Access to Document

10.1049/el.2015.2694

Cite this

@article{d0b9dd2c7d7744ec9052f050cf360aa3,

title = "Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation",

abstract = "A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62(0)(2). The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR-75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is approximate to 88% over the 3 dB directivity bandwidth.",

author = "Baba, {A. A.} and Hashmi, {R. M.} and Esselle, {K. P.}",

year = "2016",

month = feb,

day = "18",

doi = "10.1049/el.2015.2694",

language = "English",

volume = "52",

pages = "266--268",

journal = "Electronics Letters",

issn = "0013-5194",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "4",

}

TY - JOUR

T1 - Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation

AU - Baba, A. A.

AU - Hashmi, R. M.

AU - Esselle, K. P.

PY - 2016/2/18

Y1 - 2016/2/18

N2 - A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62(0)(2). The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR-75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is approximate to 88% over the 3 dB directivity bandwidth.

AB - A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62(0)(2). The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR-75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is approximate to 88% over the 3 dB directivity bandwidth.

UR - http://www.scopus.com/inward/record.url?scp=84958533986&partnerID=8YFLogxK

U2 - 10.1049/el.2015.2694

DO - 10.1049/el.2015.2694

M3 - Article

AN - SCOPUS:84958533986

VL - 52

SP - 266

EP - 268

JO - Electronics Letters

JF - Electronics Letters

SN - 0013-5194

IS - 4

ER -

Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation

Abstract

Access to Document

Other files and links

Fingerprint

Cite this