New CRLH-Based Planar Slotted Antennas with Helical Inductors for Wireless Communication Systems, RF-Circuits and Microwave Devices at UHF–SHF Bands

Alibakhshi-Kenari, Mohammad and Naser-Moghadasi, Mohammad and Sadeghzadeh, Ramazan Ali and Virdee, Bal Singh and Limiti, Ernesto (2016) New CRLH-Based Planar Slotted Antennas with Helical Inductors for Wireless Communication Systems, RF-Circuits and Microwave Devices at UHF–SHF Bands. Wireless Personal Communications, 92 (3). pp. 1029-1038. ISSN 0929-6212

[img]
Preview
Text
Wireless Pers Commun (2017) 92,1029–1038.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (1MB) | Preview
[img]
Preview
Text
new crlh.pdf

Download (2MB) | Preview
Official URL: http://link.springer.com/journal/11277

Abstract

Two novel planar slotted-antennas (PSAs) are presented that exhibit good radiation characteristics at the UHF–SHF bands. The proposed antennas are constructed using metamaterial unit-cells constituted from capacitive slots etched in the radiating patch and grounded spiral shaped inductive stubs. The proposed PSA design is fabricated on a commercially available dielectric substrate, i.e. Rogers RO4003 with permittivity of 3.38 and thickness of 1.6 mm. The first PSA comprising five symmetrical unit-cells of slot–inductor–slot configuration operates over a wide bandwidth extending from 1 to 4.2 GHz with a peak gain of 1.5 dBi and efficiency of 35 % at 2 GHz. The second PSA consists of ten asymmetrical unit-cells of slot–inductor configuration on the same size of substrate as the first PSA, enhances the antenna gain by 2 dB and efficiency by 25 % and operates over 0.75–4.5 GHz. The asymmetrical unit-cell effectively increases the aperture size of the antenna without comprising its size. The electrical size of the antenna is 0.083λo × 0.033λo × 0.005λo, where free-space wavelength (λo) is 1 GHz.

Item Type: Article
Uncontrolled Keywords: Planar slotted antennas Metamaterial Composite right/left handed transmission-lines UHF–SHF bands RF circuits Microwave devices Wireless communications systems
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Related URLs:
Depositing User: Bal Virdee
Date Deposited: 20 Jan 2017 09:33
Last Modified: 20 Jan 2017 09:33
URI: http://repository.londonmet.ac.uk/id/eprint/1175

Actions (login required)

View Item View Item