3-D Printed High-Gain Wideband Waveguide Fed Horn Antenna Arrays for Millimeter-Wave Applications

Li, Yujian; Ge, Lei; Wang, Junhong; Da, Shan; Cao, Di; Wang, Jingxue; Liu, Yang

doi:10.1109/tap.2019.2899008

Cited by 101 publications

(33 citation statements)

References 21 publications

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“…12 was printed by utilizing the commercial metallic 3D printing technology for verifying the performance of the proposed 2 × 2 multibeam subarray. The printing material is the aluminium alloy AlSi10Mg powder, which has been used in previous works [18]- [20] because of its satisfying conductivity and convenience of fabrication. The ports that are not under test are connected to the waveguide matching loads.…”

Section: Measurement and Dicussionmentioning

confidence: 99%

“…However, the printing accuracy and surface roughness are two main concerns that may affect the performance of antennas. In order to verify the feasibility of the use of 3D printing method for antenna designs, a series of the 3D printed antenna elements and arrays have been studied in [16]- [20]. Satisfying bandwidth and high gain features have been achieved at microwave and millimeterwave frequencies.…”

Section: Introductionmentioning

confidence: 99%

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A 3D-Printed Compact High-Efficiency Magneto-Electric Dipole Antenna Sub-Array for Millimeter-Wave Multi-Beam Applications

Zhao

Wang

2019

IEEE Access

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A novel three-dimensional (3D) printed 2 × 2 multi-beam magneto-electric (ME) dipole antenna subarray with a metallic configuration is investigated in the Ka-band. A modified topology of the beamforming network consisting of four air-filled 3-dB couplers is proposed, whose miniaturized size in the horizontal plane is equal to the radiating aperture of the subarray. By combining the beamforming network with the 3D printed waveguide-fed ME-dipoles, the two-dimensional multi-beam subarray is designed, printed and tested. A wide impedance bandwidth of 20%, four stable tilted radiation beams with almost identical radiation patterns in the two orthogonal planes, high radiation efficiency of 87% and high gain performance are achieved successfully. The millimeter-wave subarray-level beam-scanning array with a large size can be implemented based on the presented design. With the compact geometry fabricated in a whole piece and the good operating characteristics, this work is valuable to the emerging millimeter-wave multiple-input multiple-output (MIMO) applications.INDEX TERMS Three-dimensional (3D) printing, magneto-electric (ME) dipole, millimeter-wave, multibeam antenna, subarray.

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Section: Measurement and Dicussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A 3D-Printed Compact High-Efficiency Magneto-Electric Dipole Antenna Sub-Array for Millimeter-Wave Multi-Beam Applications

Zhao

Wang

2019

IEEE Access

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“…These issues make horn antennas the preferred solution in high frequency transmission systems with respect to planar or wire antennas: horn antennas are generally all metallic and are characterized by a simple geometry, easy construction and excitation [5]. Such features make the horn one of the typical feeds at millimeter-wave (mm-wave) frequency range, as a stand-alone antenna, array element [6] or as feed for a reflector system [7]. At mm-wave, the channel is characterized by a high signal attenuation which limits the long distance transmission capability of a stand alone antenna and requires the applications of large reflector dishes to obtain an high directivity [8].…”

Section: Introductionmentioning

confidence: 99%

An In-Line Coaxial-to-Waveguide Transition for Q-Band Single-Feed-Per-Beam Antenna Systems

et al. 2021

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An in-line transition between a coaxial cable and rectangular waveguide operating in Q-band (33–50 GHz) is presented. The aim of the work is to minimize the modifications in the waveguide to the strictly necessary to overcome the manufacturing issues due to the high frequencies involved. In addition, the transition is compact and it does not increase the space occupation on the transverse section, this suggests its application in horn antennas clusters arrangement. The operating principle consists of both a modal conversion and an impedance matching between the devices. The modal conversion is realized in an intermediate region, where the coaxial penetrates in the waveguide: the device geometry is designed so that the electric field in the transition is a trade-off between the TEM mode of the coaxial and the TE10 of the guide. A shaped waveguide backshort and a reactive air gap in the coaxial cable co-participate to achieve the matching. An optimized Chebyshev stepped transformer completes the transition to fulfil the impedance mismatch with the full waveguide. The design issues and technological aspects are considered. The influences of the feeding pin misalignment, the presence of groove is included in the analysis and these practical aspects are discussed and numerically validated via the scattering parameters analysis of the proposed design. The return loss is higher than 25 dB over the whole Q-band.

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“…In previous works, various additive manufacturing techniques have been implemented for the fabrication of high-frequency devices, such as antennas [27,28], having good results in terms of matching and radiation characteristics. Nevertheless, there are few studies that implement direct 3D-printing using the conductive filaments available on the market for this purpose [29][30][31][32]. These filaments [33][34][35] are good candidates to implement complex structures such as metasurfaces, under the scope of a low-cost prototyping [22].…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Sievenpiper Metasurface Using Conductive Filaments

2020

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This article presents the design, construction and measurement of different 3D-printed Sievenpiper metasurfaces. The structures were printed using a conductive filament combined with regular polylactic acid PLA. Measurement shows a good agreement on the electromagnetic behaviour of the stop-bands generated by the fully 3D-printed metasurface and the simulated ideal cases, but with higher transmission losses due to the characteristics of the conductive filament.

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3-D Printed High-Gain Wideband Waveguide Fed Horn Antenna Arrays for Millimeter-Wave Applications

Cited by 101 publications

References 21 publications

A 3D-Printed Compact High-Efficiency Magneto-Electric Dipole Antenna Sub-Array for Millimeter-Wave Multi-Beam Applications

A 3D-Printed Compact High-Efficiency Magneto-Electric Dipole Antenna Sub-Array for Millimeter-Wave Multi-Beam Applications

An In-Line Coaxial-to-Waveguide Transition for Q-Band Single-Feed-Per-Beam Antenna Systems

3D-Printed Sievenpiper Metasurface Using Conductive Filaments

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