Additive Manufacturing of a Dual-Ridged Horn Antenna

Majumdar, Budhaditya; Baer, David; Chakraborty, Sudipta; Heimlich, Michael

doi:10.2528/pierl16021503

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…A 3D printed spiral wire-like helical antenna with nickel and copper electroless plating is shown in [13] where a printed quarter wave transformer is used for impedance matching. In [14][15][16], a wire helix, a tapered helical antenna, and a horn antenna are constructed using inkjet and 3d printers, respectively. The impacts of 3D printing on the radiation characteristics of dielectric lens antenna are analyzed in [17].…”

Section: Introductionmentioning

confidence: 99%

3D Printed Low Profile Strip-based Helical Antenna

Ghosh¹,

Harackiewicz²

2022

PIER C

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A copper strip and conductive paint-based low profile stripped helical antenna for circular polarization over wide axial-ratio (AR) bandwidth are presented. Impacts of strip widths and geometric parameters of the helix on antenna performance (impedance bandwidth, reflection coefficient, AR, gain) are analyzed thoroughly. In terms of performance parameters, the proposed design is also compared with traditional designs of wire and strip-based helical antennas. Proper impedance matching in the proposed design is achieved by the non-conformal placement of the strip. For easing the fabrication complexity, the antenna is again simulated with a dielectric-based supportive structure, and the impact of this additional support is discussed. The antenna is then constructed on a 3D printed polylactic acid (PLA) based structure. Finally, the 1.3-turn strip-based helical antenna with a radius of 18 mm provided impedance and 3-dB AR bandwidths of 99% and 82.52%, respectively. The maximum gain of 9.40 dBi was found at 2.05 GHz in 3-dB AR bandwidth. The height of the presented antenna is 0.35 λ 0 , where λ 0 is the free space wavelength at the frequency of 2.65 GHz. Low profile and wide AR bandwidth facilitate the use of this antenna in space communication.

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Section: Introductionmentioning

confidence: 99%

3D Printed Low Profile Strip-based Helical Antenna

Ghosh¹,

Harackiewicz²

2022

PIER C

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“…The latter is of crucial demand in scanning human body applications due to the penetration depth factor [10]. In order to overcome the cost of fabrication, a different type of Thee-Dimensional (3D) printing technique was developed and proposed by engineers, which use different materials such as metal and plastic [11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the surface of the fabricated design using the material is relatively rough, which can reduce the antenna design band [13]. Therefore, inhouse 3D printing using plastic has been selected as an optimal alternative solution concerning the cost as well as the ease of fabrication [12].…”

Section: Introductionmentioning

confidence: 99%

A 3-D-Printed High-Dielectric Materials-Filled Pyramidal Double-Ridged Horn Antenna for Abdominal Fat Measurement System

Sarjoghian

Alfadhl

Chen

et al. 2021

IEEE Trans. Antennas Propagat.

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This paper presents a novel 3D-printed, pyramidal double-ridged horn antenna, filled with a high-dielectric material comprising a mixture of linseed oil and titanium oxide, for biomedical applications. In particular, this investigation explores the use of the antenna design to measure the abdominal fat layers of the human body. The antenna is designed to operate at the lowfrequency microwave bands and complemented with an absorber layer at the aperture to improve directivity. The proposed method aims to assess the fat layer thicknesses based on an analysis of the variations of the reflection coefficients. The system has been calibrated and validated based on a number of numerical timedomain simulations, as well as experimental analysis. Assessment of the first transition point in the reflection coefficient spectrum, has successfully predicted the rate of magnitude change caused by different layer thicknesses (e.g., oil and fat). Comparing coefficient spectra from various simulation experiments has allowed for eliminating the interferences arising from mismatches with the skin and muscle layers, resulting in the measurements of the fat layer thicknesses through the remaining power change rate.

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“…Three-dimensional (3D) printing using metal materials is a costly solution. The surface of the fabricated design using the material is noticeably rough that can reduce the band [15], [16]. Hence, in-house 3D printing using the ABS technique is selected as an optimal alternative solution, concerning the cost and the ease of fabrication.…”

Section: Introductionmentioning

confidence: 99%

A 3D-Printed High-Dielectric Filled Elliptical Double-Ridged Horn Antenna for Biomedical Monitoring Applications

et al. 2019

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A novel wideband (WB) 3D-printed elliptical double-ridged horn (EDRH) antenna filled with a high-dielectric material (i.e., a mixture of the paraffin and titanium oxide (TiO 2 )) is proposed for medical monitoring systems. The antenna has been designed and optimized to operate in the frequency range (2-6 GHz) to satisfy an optimal penetration level and to maintain a WB operation, which results in a high-resolution detection. The proposed antenna is embedded into a high-dielectric material to miniaturize its size and to further reduce the reflections due to mismatch with the body. The antenna was tested on tissue models consisting of two layers (i.e., skin and muscle). The reflection coefficients of the antenna, when it is on the modeled tissue, have been generated and compared with the reference of -6 dB. The obtained results show that the antenna benefits from the 4 GHz of bandwidth with a gain of 5-8 dB within the operating region.INDEX TERMS 3D printing, antenna, double-ridged horn, high-dielectric material, WB.

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Additive Manufacturing of a Dual-Ridged Horn Antenna

Cited by 5 publications

References 4 publications

3D Printed Low Profile Strip-based Helical Antenna

3D Printed Low Profile Strip-based Helical Antenna

A 3-D-Printed High-Dielectric Materials-Filled Pyramidal Double-Ridged Horn Antenna for Abdominal Fat Measurement System

A 3D-Printed High-Dielectric Filled Elliptical Double-Ridged Horn Antenna for Biomedical Monitoring Applications

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