Lightweight 3D-Printed Fractal Gradient-Index Lens Antenna with Stable Gain Performance
نویسندگان
چکیده
This paper proposes a millimeter-wave lens antenna using 3-dimensional (3D) printing technology to reduce weight and provide stable gain performance. The consists of four-layer cylindrical gradient-index (GRIN) fed by wideband Yagi antenna. We designed fractal cell geometry achieve the desired effective permittivity for GRIN lens. Among different candidates, honeycomb structure is chosen high mechanical strength with light weight, low dielectric loss, dispersion Therefore, measured peak was relatively flat at 16.86 ± 0.5 dBi within 25−31.5 GHz, corresponding 1 dB bandwidth = 23%. proposed 3D-printed cost-effective, rapid easy manufacturing.
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ژورنال
عنوان ژورنال: Fractal and fractional
سال: 2022
ISSN: ['2504-3110']
DOI: https://doi.org/10.3390/fractalfract6100551