A Shape Generation Method for 3D Printed Antennas With Unintuitive Geometries

Beneck, Ryan J.; Mackertich-Sengerdy, Galestan; Soltani, Saber; Campbell, Sawyer D.; Werner, Douglas H.

doi:10.1109/access.2022.3202536

Cited by 8 publications

(4 citation statements)

References 53 publications

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“…5. It is needed to mention that the authors in [7] found AR below 3-dB when the number of turns was at least 2.5. In our analysis (not shown), even below a single turn (N = 0.9) strip-based helix provides AR below 3-dB although it starts from the right part in the considered frequency band.…”

Section: Simulation Without Supportive Structurementioning

confidence: 97%

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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: Simulation Without Supportive Structurementioning

confidence: 97%

“…A very low-profile end fire planar helical antenna with 34% of AR bandwidth is reported in [5]. The quadrifilar helical antennas constructed on a poly-amide substrate and PLA substrate are reported in [6,7]. Besides the helical antenna, a dipole antenna is also constructed using wood-based PLA and silver nano-particle ink [8].…”

Section: Introductionmentioning

confidence: 99%

3D Printed Low Profile Strip-based Helical Antenna

Ghosh¹,

Harackiewicz²

2022

PIER C

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“…In recent years, the application of the superformula and complicated shapes in the development and design of various antennas has gained interest. This includes innovations in printed dipole [28], patch antennas [29][30][31], dielectric resonator antennas [32], ultrawideband monopoles [33], 3-D printed antennas [34] and lens antenna [35].…”

Section: Introductionmentioning

confidence: 99%

Improved Bandwidth of Microstrip Wide-Slot Antenna Using Gielis Curves

Zarifi,

Farahbakhsh,

Mrozowski

2024

IEEE Access

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The development of a broadband printed wide-slot antenna based on Gielis curves is presented in this article. The printed wide-slot antenna can be conveniently reshaped to achieve ultrawideband performance by using superformula. The distinct advantage of employing the superformula in design of wide-slot antenna lies in its ability to define nearly any geometric shape including non-standard, complex and non-intuitive for the wide-slot and by finely tuning just six parameters. To demonstrate the capabilities of the proposed approach, a simple prototype is fabricated and tested. The satisfactory correspondence between the measurement and the simulation results confirms the effectiveness of the antenna being proposed. The experimental findings reveal that the antenna's impedance bandwidth, where the VSWR is less than 2, spans from 2 to 13.9 GHz, encompassing a range that is 150% wide. Furthermore, the antenna demonstrates a realized gain ranging between 3.8 to 6.4 dBi within its operational frequency spectrum. These results indicate that the antenna exhibits the efficiency and functionality required for application in wideband communication systems.

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“…Fast prototyping techniques for antennas and microwave devices fabrication, such as 3D-printing, are gaining increasing attention within the scientific community, thanks to their less time-consuming and low-cost approach [1], [2]. Aside from these glaring benefits, one of the primary advantages consists in the free-form factor, which bestows on the designer the ability to shape the dielectric component of radio frequency structures in an unusual but convenient fashion, exploiting the third dimension to obtain better overall performance [3], [4]. It is the case of the 3D-printed curved patch antennas recently proposed in [5] and [6], which take advantage of the cylindrical shape of the dielectric substrate to broaden the bandwidth, and at the same time, to increase the efficiency and reduce the projected planar resonant length of the patch antenna.…”

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confidence: 99%

The 3D-Printed Non-Radiating Edge Gap-Coupled Curved Patch Antenna

Muntoni

Casula

Montisci

2023

IEEE Open J. Antennas Propag.

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The use of parasitic resonant patches is a widespread technique to improve the bandwidth of microstrip patch antennas. Exploiting the free form-factor allowed by 3D-printing manufacturing technology, we present here a novel curved patch antenna layout, based on the non-radiating edge gap-coupled patch configuration. The proposed antenna is composed of a central curved patch, fed by a coaxial probe, and two gap-coupled parasitic side curved patches. This solution features a percentage impedance bandwidth of 16.3% using symmetrical parasitic side patches and 31.5% using asymmetrical side patches. A significant improvement of the bandwidth in comparison with both the standard non-radiating edge gap-coupled microstrip antenna (6.1% bandwidth) and the standard curved patch antenna (9% bandwidth) is achieved. Design and optimization of the proposed configuration are performed using the commercial software CST Studio Suite at the center frequency of 2.45 GHz. Prototypes of the symmetrical curved non-radiating edge gap-coupled patch antenna have been manufactured for the experimental verification, using a curved 3Dprinted polylactic acid (PLA) substrate, fabricated with the commercial 3D printer PRUSA MK3S+, and a 50µm-thick adhesive aluminum tape for the metallization. Measured results show a very good agreement with simulations.INDEX TERMS Curved patch, Bandwidth enhancement, Microstrip antennas, 3D printed antennas

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A Shape Generation Method for 3D Printed Antennas With Unintuitive Geometries

Cited by 8 publications

References 53 publications

3D Printed Low Profile Strip-based Helical Antenna

3D Printed Low Profile Strip-based Helical Antenna

Improved Bandwidth of Microstrip Wide-Slot Antenna Using Gielis Curves

The 3D-Printed Non-Radiating Edge Gap-Coupled Curved Patch Antenna

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