Chudpooti, N, Duangrit, N, Akkaraekthalin, P et al. (2 more authors) (2019) 220-320 GHz Hemispherical Lens Antennas Using Digital Light Processed Photopolymers. IEEE Access, 7. pp. 12283-12290. ISSN 2169-3536
Abstract
This paper presents a 220–320-GHz hemispherical lens antenna fabricated using photopolymer-based additive manufacture and directly fed by the standard WR-3 rectangular waveguide without any additional waveguide extension. The microfabrication process is based on digital light processing rapid prototyping using the Monocure 3DR3582C resin-based photocurable polymer. This gives various key advantages, including ease of antenna fabrication, manufacturing speed, and cost-effectiveness due to its rapid fabrication capability. Even though the photopolymer is found to have a loss tangent of 0.034 at 320 GHz, the all-polymer lens antennas still achieve a fractional bandwidth of 37%, covering the whole 220–320-GHz WR-3 waveguide band with a measured gain of approximately 16 dBi at 0° over the whole band. A measured return loss of better than 14 dB is achieved from 220 to 320 GHz with a half-power beamwidth of approximately 12°, which is relatively constant over the whole WR-3 band.
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Copyright, Publisher and Additional Information: | This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/. | ||||||
Keywords: | Lens antenna; digital light processing; terahertz antennas | ||||||
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Institution: | The University of Leeds | ||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
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Depositing User: | Symplectic Publications | ||||||
Date Deposited: | 11 Jan 2019 16:17 | ||||||
Last Modified: | 06 Mar 2019 00:38 | ||||||
Status: | Published | ||||||
Publisher: | Institute of Electrical and Electronics Engineers | ||||||
Identification Number: | https://doi.org/10.1109/ACCESS.2019.2893230 |