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- W4386890205 abstract "Abstract We designed a mesoscopic dielectric cuboid antenna connected to a flangeless WR-3.4 open-ended waveguide, and the antenna characteristics at 300 GHz were examined through simulations and experiments. Simulations confirmed that the flangeless design eliminated the flange-induced ripples in the radiation pattern, whose shape varied with frequency, and that the antenna operated in the full bandwidth of the WR-3.4 waveguide (220–330 GHz). Prototypes were then fabricated based on the simulation findings. A prototype with an antenna aperture area of 1.5 mm $$times$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mo>×</mml:mo> </mml:math> 1.5 mm and an antenna length of 2.35 mm exhibited an antenna gain of 17.2 dBi at 300 GHz and a voltage standing wave ratio of less than 1.5 throughout the WR-3.4 waveguide bandwidth. The level of the side lobes at about $$pm 30$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mo>±</mml:mo> <mml:mn>30</mml:mn> </mml:mrow> </mml:math> degrees in the E-plane pattern was approximately $$-10$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>10</mml:mn> </mml:mrow> </mml:math> dB that of the main lobe. Therefore, the proposed antenna, connected to a flangeless waveguide, is a promising antenna for use in future short-range high-speed terahertz wireless applications such as kiosk downloads and board-to-board communication." @default.
- W4386890205 created "2023-09-21" @default.
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- W4386890205 date "2023-09-20" @default.
- W4386890205 modified "2023-09-29" @default.
- W4386890205 title "Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz)" @default.
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- W4386890205 doi "https://doi.org/10.1038/s41598-023-42640-x" @default.
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