Application of X-ray scanning to diagnose internal details of waveguide antenna fabricated by 3-D metal-direct-printing technique

Huang, Guan‐Long; Chio, Tan‐Huat; Yeo, Tat‐Soon; Zhou, Shi‐Ping

doi:10.1109/apcap.2015.7374503

Cited by 4 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 3D printer is based on FDM technology and can produce a feature size down to 0.4 mm. 3D printing is fairly economical and efficient in comparison to conventional micro‐fabrication techniques . It offers not only the realization of relatively complex geometries but also an ease of repeatability, rapid prototyping and enables control over the infill density .…”

Section: Fabrication Of Lens Geometrymentioning

confidence: 99%

“…3D printing is fairly economical and efficient in comparison to conventional micro-fabrication techniques. 13,14 It offers not only the realization of relatively complex geometries but also an ease of repeatability, rapid prototyping and enables control over the infill density. 15,16 PMMA is used as a printing material due to its optimal printing temperature (235 C to 255 C).…”

Section: Fabrication Of Lens Geometrymentioning

confidence: 99%

See 1 more Smart Citation

3D printed dielectric lens for the gain enhancement of a broadband antenna

Anwar

Abufanas

Bangert

2020

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

A novel 3D printed dielectric lens to enhance antenna gain parameters is presented. The lens is fabricated using a fused deposition method (FDM) which is a cost‐effective and an efficient 3D printing technique. Poly‐methyl methacrylate (PMMA) is used as a dielectric material due to its good RF properties. The thickness of the dielectric lens is 14 mm and provides a gain enhancement of up to 6.9 dBi over a wide frequency range. The dielectric lens is designed and computationally analyzed to demonstrate refractive index value close to zero. It has been shown that impedance‐matched near‐zero refractive index lens geometry eliminates strong reflections, and consequently enhances the antenna gain. A correlation is established between the individually, stacked unit cell layers and near‐zero refractive index cut‐off frequencies. The claim is substantiated through measured results using a broadband Vivaldi antenna. A gain enhancement of up to 6.9 dBi is recorded for the bandwidth from 13.5 to 24 GHz. An excellent correlation is reported between the measured and simulated results.

show abstract

Section: Fabrication Of Lens Geometrymentioning

confidence: 99%

Section: Fabrication Of Lens Geometrymentioning

confidence: 99%

3D printed dielectric lens for the gain enhancement of a broadband antenna

Anwar

Abufanas

Bangert

2020

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…These promising technologies go beyond conventional machining to manufacture conformal [1], complex and nested parts [2]. Many technological processes are available to construct metallic devices, which can be done by direct (metallic materials [1][2][3][4][5][6][7]) or indirect (polymers or ceramic materials with metallic plating [5,[8][9][10][11][12][13][14][15]) means. The selection of the process depends on the design complexity, the available material, the cost and the robustness of the parts.…”

Section: Introductionmentioning

confidence: 99%

Direct metal laser sintering process investigation: application to 3D slotted waveguide antennas

Martin-Guennou

Quéré

Rius

et al. 2017

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

Increasing demand for the development of multifunction radio‐frequency‐systems requires the fabrication of complex architectures. Three‐dimensional (3D) direct metal printing direct metal laser sintering (DMLS) has the required properties to build complex and robust parts. To determine whether this technology is able to replace traditional machining methods, it needs to be extensively examined. In the present study, several waveguides operating in a wide‐frequency range, and slotted waveguide antennas with relevant details and shape, operating in the Ku‐band, were designed, machined, assessed and measured. Measurements show that the degradation of component performances are related to the fabrication strategy used. Deterministic defects were observed that make it possible to conceive ways of enhancing manufactured parts. Through this analysis, the authors demonstrate the potential of the DMLS process to construct finely detailed complex and conformal structures.

show abstract

3D printed microfluidics-based reconfigurable antenna

Anwar

Bangert

2017

2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-A

View full text Add to dashboard Cite

Application of X-ray scanning to diagnose internal details of waveguide antenna fabricated by 3-D metal-direct-printing technique

Cited by 4 publications

References 5 publications

3D printed dielectric lens for the gain enhancement of a broadband antenna

3D printed dielectric lens for the gain enhancement of a broadband antenna

Direct metal laser sintering process investigation: application to 3D slotted waveguide antennas

3D printed microfluidics-based reconfigurable antenna

Contact Info

Product

Resources

About