Wideband antenna for 4G MIMO applications

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Authors

Kenny, Caitlin
Odendaal, J.W. (Johann Wilhelm)
Joubert, Johan

Journal Title

Journal ISSN

Volume Title

Publisher

Wiley

Abstract

A small, wideband, multiple-input-multiple-output antenna is presented for 4G long term evolution (LTE) applications. The proposed antenna consists of a vertically polarized wideband stepped slot, as well as a horizontally polarized narrowband, uniform slot, integrated on a single substrate and fed by two ports. A prototype of the proposed antenna was designed, fabricated, and measured. The stepped slot antenna achieves an enhanced bandwidth of 122% from 0.77 GHz to 3.12 GHz, covering the 2G, 3G, and 4G bands. The narrowband slot achieves a bandwidth of 35% from 2.11 GHz to 3.01 GHz, covering the 4G band frequencies only. The isolation between the two slots is greater than 21 dB over the entire band of interest. The radiation pattern of the wideband slot in the horizontal plane is omnidirectional in nature while the narrowband slot exhibits a bidirectional radiation pattern in the horizontal plane. The proposed antenna is suitable for indoor, ceilingmount, microcell 4G LTE applications.

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Keywords

Multiple-input-multiple-output, Wideband, 4G long term evolution (LTE)

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Citation

Kenny, C, Odendaal, JW & Joubert, J 2017, 'Wideband antenna for 4G MIMO applications', Microwave and Optical Technology Letters, vol. 59, no. 3, pp. 601-604.