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Narrow-beam azimuthally omni-directional millimetre-wave antenna using freeformed cylindrical woodpile cavity

Lee, Y; Lu, X; Hao, Y; Yang, S; Evans, JRG; Parini, CG; (2010) Narrow-beam azimuthally omni-directional millimetre-wave antenna using freeformed cylindrical woodpile cavity. In: IET MICROWAVES ANTENNAS & PROPAGATION. (pp. 1491 - 1499). INST ENGINEERING TECHNOLOGY-IET

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Abstract

A freeformed cylindrical electromagnetic bandgap (EBG) structure and its application for millimetre-wave antennas are presented. The cylindrical EBG structure is fabricated using the extrusion freeforming technique in which the design is downloaded directly to a building platform. The fabricated cylindrical woodpile exhibits bandgap characteristics around 95 GHz and is used for realising a resonant cavity antenna. The fabricated antenna achieves a narrow beam with 6.5 degrees measured half-power beam-width in the elevation plane without using an array configuration. The overall antenna gain is approximately 5 dBi at 94.2 GHz, suitable for future short-range gigabit wireless communications.

Type:Proceedings paper
Title:Narrow-beam azimuthally omni-directional millimetre-wave antenna using freeformed cylindrical woodpile cavity
Event:20th Asia Pacific Microwave Conference
Location:Macau, PEOPLES R CHINA
Dates:2008-12-19 - 2008-12-20
DOI:10.1049/iet-map.2009.0224
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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