Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Lightweight 3D-Printed Fractal Gradient-Index Lens Antenna with Stable Gain Performanceopen access
- Authors
- Kim, Y.; Pham, D.A.; Phon, R.; Lim, Sungjoon
- Issue Date
- Oct-2022
- Publisher
- MDPI
- Keywords
- fractal unit cell; lens antenna; millimeter-wave antenna; three-dimensional printing; Yagi–Uda antenna
- Citation
- Fractal and Fractional, v.6, no.10
- Journal Title
- Fractal and Fractional
- Volume
- 6
- Number
- 10
- ISSN
- 2504-3110
2504-3110
- Abstract
- This paper proposes a millimeter-wave lens antenna using 3-dimensional (3D) printing technology to reduce weight and provide stable gain performance. The antenna consists of a four-layer cylindrical gradient-index (GRIN) lens fed by a wideband Yagi antenna. We designed a fractal cell geometry to achieve the desired effective permittivity for a GRIN lens. Among different candidates, the honeycomb structure is chosen to provide high mechanical strength with light weight, low dielectric loss, and lens dispersion for a lens antenna. Therefore, the measured peak gain was relatively flat at 16.86 ± 0.5 dBi within 25−31.5 GHz, corresponding to 1 dB gain bandwidth = 23%. The proposed 3D-printed GRIN lens is cost-effective, with rapid and easy manufacturing.
- Files in This Item
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.