NDLI: Dielectric and metallic jointly 3D-printed mmWave hyperbolic lens antenna

Content Provider	IET Digital Library
Author	Zhang, Bing Guo, Yong Xin Guo, Qingyi Wu, Li Ng, Kung Bo Wong, Hang Zhou, Yanping Huang, Kama
Abstract	A dielectric–metallic jointly three-dimensional (3D) printed V-band (50–75 GHz) lens antenna with preliminary surface roughness modelling is proposed. It takes full advantage of both the dielectric and metallic 3D printing technologies which help effectively to control the cost of the lens antenna. The stereolithography apparatus is used to form the lens using Somos Imagine 8000 resin, while the selective laser melting is used to fabricate the feed horn using aluminium alloy. A λ 0/4 matching layer is adopted between the feed and lens for reduced reflection. The surface roughness of the lens and the feed horn are characterised under a surface profilometer. Owing to the material and process, the surface roughness of the 3D-printed device demonstrates distinctive properties. A preliminary conjecture is made on the surface roughness distribution of 3D-printed devices that are helpful to predict roughness-related performance degradation. The antenna is characterised by electromagnetically and materialwise. It has impedance bandwidth of ∣S11∣<−20 dB from 50 to 70 GHz with the in-band gain >32 dBi and symmetric radiation patterns on both E and H planes, which agrees well with simulation.
Starting Page	1934
Ending Page	1939
Page Count	6
ISSN	17518725
Volume Number	13
e-ISSN	17518733
Issue Number	Issue 11, Sep (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.6151
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-05-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	3D-printed Device 3D-printed Lens Antennas Aluminium Alloys Antenna Accessory Antenna Feeds Antenna Radiation Pattern Dielectric D Printing Technology Dielectric–metallic Jointly 3D Printed V-band Lens Antenna Feed Horn Frequency 50.0 GHz to 75.0 GHz Fully Functional MmWave Device Horn Antenna Hybrid 3D Printing Technology Lens Antenna Metallic 3D Printing Technology Microstrip Antenna Millimetre Wave Antenna Millimetre-wave Point-to-point High-speed Data Transfer MmWave Hyperbolic Lens Antenna Roughness-related Performance Degradation Single Antenna Stereolithography Surface Profilometer Surface Resistance Measurement Surface Roughness Distribution Surface Roughness Modelling Three-dimensional Printed V-band Lens Antenna Three-dimensional Printing
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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