Triple-Band Planar Dipole Antenna for Omnidirectional Radiation

Alibakhshikenari, Mohammad, Virdee, Bal Singh and Limiti, Ernesto (2017) Triple-Band Planar Dipole Antenna for Omnidirectional Radiation. Microwave and Optical Technology Letters. ISSN 1098-2760 (In Press)

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Abstract

This Letter presents a compact triple-band dipole antenna that radiates omnidirectionally. The antenna is a T-shaped structure that is excited through a vertical feedline. Located under the horizontal rectangular patch are two λ/2 long meander-line stubs symmetrically interfaced to the feedline. On the bottom side of the substrate is a trident shaped ground-plane structure located under the T-shaped radiator. The proposed configuration is essentially composed of three radiating elements, which has a small footprint of 19×16 mm2 on a 0.8 mm thick substrate. Regions of enhanced impedance matching are realized between 0.5 – 2.69 GHz, 3.2 – 4.44 GHz and 4.82 – 6.6 GHz covering major portions of L, S and C-bands. It is shown by reducing the gap between the meander lines stub and rectangular patch reduces results in increased gain performance. Measured results confirm the antenna exhibits omnidirectional radiation with enhanced impedance match at 1.5, 4 and 5.4 GHz with corresponding average gain of 1.6 dBi, 3.4 dBi and 3 dBi, respectively.

Item Type: Article
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Bal Virdee
Date Deposited: 08 Jan 2018 10:17
Last Modified: 08 Jan 2018 10:17
URI: http://repository.londonmet.ac.uk/id/eprint/1303

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