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Low-Profile Directive Millimeter-Wave Antennas Using Free-Formed Three-Dimensional (3-D) Electromagnetic Bandgap Structures

Lee, Y; Lu, XS; Hao, Y; Yang, SF; Evans, JRG; Parini, CG; (2009) Low-Profile Directive Millimeter-Wave Antennas Using Free-Formed Three-Dimensional (3-D) Electromagnetic Bandgap Structures. IEEE T ANTENN PROPAG , 57 (10) 2893 - 2903. 10.1109/TAP.2009.2029299.

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Abstract

We present design methodologies for directive millimeter-wave antennas using free-formed three-dimensional (3-D) electromagnetic bandgap (EBG) structures. Dispersion characteristics of 3-D EBGs have been computed by finite-difference time-domain (FDTD) simulations and the designed EBGs have been fabricated by using the extrusion free-forming technique. The fabricated EBG structures have been measured and integrated with a waveguide feed to form a Fabry-Perot cavity antenna. The prototype antenna demonstrated 10 degrees to 14 degrees beamwidths with measured gain of 13 dBi. The woodpile EBG antenna achieved a narrow beamwidth without resorting to complex arrays or bulky reflectors, which would make the antenna well-suited for millimeter-wave broadband mobile communications, imaging and space applications.

Type:Article
Title:Low-Profile Directive Millimeter-Wave Antennas Using Free-Formed Three-Dimensional (3-D) Electromagnetic Bandgap Structures
DOI:10.1109/TAP.2009.2029299
Keywords:Directive antenna, electromagnetic bandgap (EBG), metamaterial, millimeter-wave, EBG RESONATOR ANTENNA, DESIGN, ENHANCEMENT, SUPERSTRATE, ARRAY, GAIN, GAP
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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