Steerable millimetre-wave plasmonic antenna with elliptical slots

Author

Alkaraki, Shaker ; Zhirun Hu

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK

fYear

2014

fDate

6-11 April 2014

Firstpage

985

Lastpage

988

Abstract

In this work, steerable millimetre-wave plasmonic antenna is presented. The proposed antenna is designed using slit grating structure that comprises of single sub-wavelength slit enclosed by periodic symmetrical grooves that increase the antenna´s gain. The plasmonic antenna´s beam is steered by introducing elliptical slots on the antenna´s surface. The elliptical slots not only steer the antenna´s beam, but they also increase the antenna´s gain. The antenna beam angle can be steered from -20° to +20° over the operation bandwidth which is 2.06GHz. The steerable millimetre-wave plasmonic antenna is flat, thin and light and it is characterized by an overall thickness of 1.2mm, that corresponds to around 0.25λ at the resonance frequency. The proposed antenna resonates at 61.54GHz and it achieves a gain of 12.55dB with a low side lobe level of 5.6 dB at resonance frequency.

Keywords

beam steering; metamaterial antennas; millimetre wave antennas; plasmonics; antenna gain; antenna surface; bandwidth 2.06 GHz; elliptical slot; frequency 61.54 GHz; gain 12.55 dB; periodic symmetrical groove; plasmonic antenna beam angle; resonance frequency; side lobe level; single subwavelength slit; slit grating structure; steerable millimetre-wave plasmonic antenna; Antenna radiation patterns; Directive antennas; Gain; Plasmons; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6901930

Filename

6901930