Spoof surface plasmons spawning pencil-beam antennas of subwavelength profile.
Opt Lett
; 49(13): 3624-3627, 2024 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-38950225
ABSTRACT
Slot-array antennas based on metallic waveguides have been widely used to generate pencil-beams, attracting attention due to their design simplicity and compact size. However, current slot-array antennas possess wavelength-scale profiles, which do not align optimally with the low-profile requisites of contemporary integrated communication and radar systems. Here, we propose a low-profile slot-array antenna designed specifically for the pencil-beam generation. Constructed with the two-dimensional-array (2D-array) slots situated on a sub-wavelength domino plasmon waveguide, the pencil-beam is generated with a peak gain of up to 21.6â
dBi. Moreover, the generated pencil-beam allows for a wide scanning range of over 73.6° by adjusting the operating frequency from 45 to 65â
GHz. Our research shows great potential for enhancing millimeter-wave radar capabilities and advancing communication systems.
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MEDLINE
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En
Ano de publicação:
2024
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Article