Compact Wearable Antenna with Metasurface for Millimeter-Wave Radar Applications

Three metasurfaces (MTS) are designed to be combined with a series end-fed 1 × 10 array antenna with a modified Dolph-Chebyshev distribution for imaging applications in the millimeter frequency range, 24.05-24.25 GHz. A reduction in secondary lobes and an increase in FTBR can be achieved while prese...

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Bibliographic Details
Published in:Materials 2023-03, Vol.16 (7), p.2553
Main Authors: de Cos Gómez, María Elena, Fernández Álvarez, Humberto, Flórez Berdasco, Alicia, Las-Heras Andrés, Fernando
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas
Antennas (Electronics)
Bandwidths
Chebyshev approximation
Collision avoidance
Design and construction
Design techniques
Electric properties
Equipment and supplies
Frequency ranges
Metasurfaces
Millimeter waves
People with disabilities
Radar systems
Radiation
Simulation
Smart materials
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Description
Summary:Three metasurfaces (MTS) are designed to be combined with a series end-fed 1 × 10 array antenna with a modified Dolph-Chebyshev distribution for imaging applications in the millimeter frequency range, 24.05-24.25 GHz. A reduction in secondary lobes and an increase in FTBR can be achieved while preserving gain, radiation efficiency, SLL and size using an MTS-array combination. Moreover, as a result of each single-layer MTS-array combination, operation bandwidth is widened, with gain and radiation efficiency enhancement. The overall devices' size is 86.8 × 12 × 0.762 mm . The envisioned application is collision avoidance in aid to visually impaired people at a medium-long distance.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16072553