Evaluation of Additive Manufacturing Techniques Applied to Ku-Band Multilayer Corporate Waveguide Antennas

García-Marín, Eduardo; Masa‐Campos, José Luis; Sánchez-Olivares, Pablo; Ruiz‐Cruz, Jorge A.

doi:10.1109/lawp.2018.2866631

Cited by 20 publications

(10 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the case of the SWA array, the RF performances are sensitive to dimensional variations from manufacturing, particularly the size of resonant coupling irises placed between the radiating waveguides and the feeding network [9]. These iris dimensions are difficult to control when using the DMLS manufacturing process [10,11], and no post-process or adjustment is possible inside the structure. The use of the TE20 mode to feed substrate integrated waveguide (SIW) travelling wave antennas or SIW slot arrays has already been described [12][13][14], but SIW SWA arrays suffer from dielectric losses and greater dispersion than air-filled devices [15].…”

Section: Of 11mentioning

confidence: 99%

Design of a Slotted Waveguide Antenna Based on TE20 Mode in Ku-Band Suitable for Direct Metal Laser Sintering

et al. 2022

View full text Add to dashboard Cite

This paper describes the design of a novel Ku-band slotted waveguide antenna (SWA), taking into consideration the advantages and drawbacks of using a 3D direct metal laser sintering (DMLS) process. Indeed, the DMLS process makes it possible to produce a SWA with 64 radiating slots and its feeding network in a single and monolithic process. However, considering the lack of accuracy of the process, the whole design must be completely thought out and planned to avoid sensitive dimensions. Coupling irises inside such structures are elements of major sensitivity in this regard, so the radiating waveguides in the present work were designed to be TE20 ones, avoiding this kind of iris. Thus, a TE10 to TE20 converter was designed to be implemented in the overall power supply structure of an antenna array made up of four linear SWAs with 16 slots each. Both the elementary 16-slot SWA and the complete SWA with the feeding network were manufactured using DMLS. At a resonant frequency of 15 GHz, the measured realized gain is 22.26 dB with sidelobe levels below 10.1 dB. The measured reflection coefficient is lower than −12.6 dB at the center frequency. These measured performances confirm the proof of concept.

show abstract

Section: Of 11mentioning

confidence: 99%

Design of a Slotted Waveguide Antenna Based on TE20 Mode in Ku-Band Suitable for Direct Metal Laser Sintering

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Other research groups concentrated on metamaterial filters for the K-band [98], waveguide antennas for the Ku band [99,100] or other bands [101,102]. Generally, here the mechanical and thermal requirements are less rigorous in comparison with the aforementioned applications; thus, most studies are based on state-of-the-art metal additive manufacturing, taking into account design for the respective technique and possibly a postprocessing step to avoid too high roughness.…”

Section: Antennasmentioning

confidence: 99%

Metal Additive Manufacturing for Satellites and Rockets

Błachowicz

Ehrmann²,

Ehrmann

2021

Applied Sciences

View full text Add to dashboard Cite

The emerging technology of 3D printing can not only be used for rapid prototyping, but will also play an important role in space exploration. Additive manufactured parts can be used in diverse space applications, such as magnetic shields, heat pipes, thrusters, etc. Three-dimensional printed parts offer reduced mass, high possible complexity, and fast printability of custom-made objects. On the other hand, materials which are not excessively damaged by the harsh conditions in space and are also printable by available technologies are not abundantly available. This review gives an overview of recent metal additive manufacturing technologies and their possible applications in space, with a focus on satellites and rockets, highlighting already applied technologies and materials and gives an outlook on possible future applications and challenges.

show abstract

“…Wideband, and dual‐circular‐polarized waveguide cavity array was printed by using direct metal sintering (DMLS) in Reference . DMLS and stereolitography (SLA) were compared to traditional method of computer numerical control milling (CNC) in Reference . DMLS printed corrugated horn antennas were reported at W band …”

Section: Antenna Structure and 3d Fabricationmentioning

confidence: 99%

Three‐dimensional printed wideband, dual‐cavity Ku‐band antenna

Asci

Yeğin

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

A novel three‐dimensional (3D) printed, wideband, and low cost bull's eye antenna is proposed and designed for Ku‐band applications. The proposed antenna covers entire Ku‐band satellite communication bands starting from 10.5 GHz to 14.5 GHz. The antenna structure consists of dual‐cavity radiating aperture surrounded by a circular groove. With the addition of cavity and corrugation, the antenna gain is increased more than 6 dB. The antenna is fabricated using 3D printing technology and conductive painting. Measurement results indicate that the antenna has 72% fractional bandwidth from 8 GHz to 17 GHz. Measured antenna peak gain is 13.5 dBi at 13 GHz and no less than 11.5 dBi throughout the entire Ku band.

show abstract

Evaluation of Additive Manufacturing Techniques Applied to Ku-Band Multilayer Corporate Waveguide Antennas

Cited by 20 publications

References 18 publications

Design of a Slotted Waveguide Antenna Based on TE20 Mode in Ku-Band Suitable for Direct Metal Laser Sintering

Design of a Slotted Waveguide Antenna Based on TE20 Mode in Ku-Band Suitable for Direct Metal Laser Sintering

Metal Additive Manufacturing for Satellites and Rockets

Three‐dimensional printed wideband, dual‐cavity Ku‐band antenna

Contact Info

Product

Resources

About