Machined Metal FUSE Array Apertures

Kindt, Rick W.; Logan, John T.; Elsallal, M. Wajih

doi:10.1109/past43306.2019.9021101

Cited by 12 publications

(2 citation statements)

References 16 publications

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“…Generally, conventional Vivaldi antennas were designed and manufactured based on a printed circuit board (PCB), which has the advantages of high processing precision, good end-fire radiation, and low cost [ 12 , 13 , 14 , 15 , 16 , 17 ]. Due to the characteristics of high strength, high temperature and power resistance, some designs for metal Vivaldi arrays have been presented in the past decade [ 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. In [ 18 ], Kindt and Pickles presented a design for an all-metal Vivaldi array element with an operational bandwidth of 12:1 for broadside scanning and 8:1 bandwidth at a 45-degree scan in all planes.…”

Section: Introductionmentioning

confidence: 99%

Dual-Polarized Metal Vivaldi Array Using Independent Structural Elements

Chen,

Wang,

Liu

et al. 2024

Sensors

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In this letter, a dual-polarized metal Vivaldi phased array antenna composed of independent structural elements is proposed, covering 6–18 GHz. By designing Vivaldi elements with a flexible and complementary structure, arrays of arbitrary shapes and scales can be constructed. The resonance caused by structural discontinuity is critically studied and eliminated to ensure good performance across the entire band. The antenna elements are fed by 50-Ohm SSMP connectors and manufactured from 2A12 aluminum alloy. An array prototype consisting of 8 × 8 dual-polarized metal has been fabricated and tested with active transmit/receive (T/R) modules to demonstrate the design concept. The array exhibits excellent beam-scanning characteristics in both the E-plane and H-plane, within the scanning range without grating lobes, which shows good agreement with the simulated results. The measured gain results are within the range of 15.2 to 24.8 dBi, and the aperture efficiencies are greater than 91% in the entire operating band. The wideband antenna technology involved in this study can effectively help increase the capacity of communication systems and meets the intentions of the Special Issue.

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Section: Introductionmentioning

confidence: 99%

Dual-Polarized Metal Vivaldi Array Using Independent Structural Elements

Chen,

Wang,

Liu

et al. 2024

Sensors

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“…Recently, 3D antennas have emerged as a solution to compact designs with enhanced antenna gain, and ultra-wide bandwidth while achieving a highly focused radiation beam. Some of these designs include dipoles and slots-based antennas [33], [34], balanced antipodal Vivaldi array (BAVA) [35], frequencyscaled ultra-wide spectrum elements (FUSE) [36], and so on. The aforementioned limitations of planar microstrip antennas have given rise to the development of high-precision 3D printed antennas using techniques such as additive manufacturing (AM) and computer numerical control manufacturing (CNCM) procedures.…”

Section: Introductionmentioning

confidence: 99%

A Slot-Connected Cavity Design With Corresponding Equivalent Circuit Model Analysis for Fully Metallic 3-D Vivaldi Antenna for Wireless Power Telemetry Applications

Roy,

Kakaraparty,

Mahbub

2024

IEEE Open J. Antennas Propag.

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This paper presents the design of fully metallic 3D Vivaldi antenna that can be used for wireless power transmission applications. The 3D antenna consists of 1) a tapered profile, 2) a rectangular cavity, and 3) a horizontal slot cut that is used as a transition between the cavity and the tapered profile. The proposed antenna design is fabricated using two distinct approaches, the first of which is a 3D metal additive manufacturing (AM scheme) with a sequential material layer addition technique. The second version is based on the CNC milling (CNCM) technique implemented by selectively removing material in a controlled way. The measured gain of the AM and CNCA-based 3D Vivaldi antenna is 4.95 dBi, and 5.70 dBi, respectively. The measured bandwidth (BW) of the AM-based 3D antenna is 4.70 GHz (fractional BW (FBW) of 52.86%), whereas the CNCM-based 3D antenna is 4.95 GHz (FBW of 56.73%). Measurement outcomes indicate that the CNCM version of the 3D Vivaldi antenna is ∼ 1.2x more effective than the AM version in terms of realized gain and can be used for metal-based antenna system power telemetry due to its high gain and wide operational bandwidth capability.INDEX TERMS All-metal antenna, Slot-Connected Cavity, 3D Vivaldi antenna, CNC manufacture, additive manufacture, wireless power transfer (WPT), wireless power telemetry.

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Low-Profile Machined-Metal Array Radiator for Ka-Band

Kindt

Elsallal

2020

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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Machined Metal FUSE Array Apertures

Cited by 12 publications

References 16 publications

Dual-Polarized Metal Vivaldi Array Using Independent Structural Elements

Dual-Polarized Metal Vivaldi Array Using Independent Structural Elements

A Slot-Connected Cavity Design With Corresponding Equivalent Circuit Model Analysis for Fully Metallic 3-D Vivaldi Antenna for Wireless Power Telemetry Applications

Low-Profile Machined-Metal Array Radiator for Ka-Band

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