3D-printed Fresnel zone plate lens
Shiyu Zhang, William G. Whittow, Yiannis Vardaxoglou
Abstract
Shiyu Zhang, William G. Whittow, Yiannis Vardaxoglou
Abstract
3D-printing has been used for rapidly prototyping a low-cost and light-weight dielectric zone plate Fresnel lens (FL). This lens was comprised of four dielectric zones and they were fabricated in one process with the tailored permittivities. Measurements show that this lens provides 7.3 to 12.8 dB gain enhancement over the frequency band from 8 to 12 GHz.
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3D-printing has been used for rapidly prototyping a low-cost and light-weight dielectric zone plate Fresnel lens (FL). This lens was comprised of four dielectric zones and they were fabricated in one process with the tailored permittivities. Measurements show that this lens provides 7.3 to 12.8 dB gain enhancement over the frequency band from 8 to 12 GHz.
Key concepts: Zone plate, Fresnel zone antenna, Fresnel lens, Lens (geology), Optics, Materials science, Dielectric, Fresnel equations