A 3D Printed Ka-Band High-Efficiency Wide-Slit Antenna Array for High-Power Microwave Applications

Liu, Liang; Yang, Yu; Li, Shifeng; Fang, Xianghe; Meng, Fanbao; Yu, Chuan

doi:10.1155/2022/2653410

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Целью статьи является описание шагов такой методики по разработке волноводнощелевых антенных решеток в программах CST Microwave Studio и КОМПАС-3D. В качестве прототипа для определенности выбрана сложная волноводно-щелевая антенная решетка для области частот от 30 ГГц (соответствует длина волны 1 см) до 31 ГГц, предложенная в работе [16].…”

Section: Introductionunclassified

Slotted-Waveguide Antenna Array Development by Means of Complementarity оf CST Microwave Studio and Compass 3D Programs

Tatarkin,

Zaitseva,

Shishakov

2023

Intellekt. Sist. Proizv.

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The main steps of the methodology for complex slotted-waveguide antenna arrays development using the complementary application of the COMPASS 3D design program and electromagnetic modeling CST Microwave Studio are considered. The presentation of the technique steps is carried out on the example of a structurally complex slotted-waveguide antenna array of the Ka-band with dimensions (117 mm ´ 30 mm) and two-dimensional array of 64 (2 ´ 8 ´ 4) slotted emitters. To facilitate the synthesis of the design parameters of such grids, it is proposed to use a three-stage process: 1) design of slotted antenna emitting modules with adjustment to a given operation frequency range; 2) development of harmonized multichannel power divider for them; 3) combining the antenna modules and the branched power divider into an effective antenna array with additional adjustment of their coordination parameters. According to this sequence, in the illustrated example, on the first step, the antenna emitter module with four slits is designed in the CST Microwave Studio program. Afterwards, on the second stage, a complex multi-channel waveguide power divider was designed. It is first drawn in COMPASS 3D and then imported and analysed in CST Microwave Studio. On the final third stage, the entire slotted-waveguide antenna array was assembled and simulated in CST Microwave Studio. At the same time, the obtained radiation pattern of the antenna array, the functions of electromagnetic field distribution in the waveguide path and other electromagnetic characteristics corresponded to the required ones. Equally, there was a slight shift in the standing wave ratio (SWR) of the operating frequency matching, as well as some deterioration in the SWR. This is explained by the fact that the links between the models of antenna emitters and the waveguide power distributor were carried out 'in ideal ports'. Meanwhile, the real values of the input resistances in these planes of the assembled structure are somewhat different from the ideal ones. Therefore, to complete the process of structural synthesis of the antenna-slot array, two approaches should be used: 1) it is better to complete design parameter optimization according to the criterion of improving the harmonization, if required to shift the operating frequency, 2) to reduce the SWR value, it is better to improve the coordination of the antenna array at its input by adjusting the matching device.

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Section: Introductionunclassified

Slotted-Waveguide Antenna Array Development by Means of Complementarity оf CST Microwave Studio and Compass 3D Programs

Tatarkin,

Zaitseva,

Shishakov

2023

Intellekt. Sist. Proizv.

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“…However, its HPM antenna has the defects of huge size and single-aperture radiation, so it is difficult to be used in highfrequency microwave devices. Common HPM antennas with a mode converter include Vlasov antennas [8][9][10], helical antennas [11][12][13], leaky waveguide antennas [14][15][16][17], horn antennas [18][19][20][21][22][23][24][25], parabolic reflector antennas [26,27], all-metal antenna [28,29] and EZ antennas [30,31]. The Vlasov antenna can generate a narrow radiation beam by configuring different circular waveguide opening shapes with a parabolic cylindrical reflector.…”

Section: Introductionmentioning

confidence: 99%

X-Band Active Phased Array Antenna Using Dual-Port Waveguide for High-Power Microwave Applications

Liu

Wang

et al. 2022

Electronics

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An X-band active phased array horn antenna with high power capacity and high peak power is proposed in this paper. At the horn aperture, the baffles are loaded to suppress higher-order modes and eliminate blind spots during beam scanning. Straight walls are added to improve impedance matching. Considering that the peak power that T/R modules can provide is very limited, the proposal of a dual-port waveguide breaks through the bottleneck of the power capacity of a single-port input for the first time. The proposed curved dual-port waveguide is used to connect the horn antenna and the T/R module, which is verified to improve the power capacity of the overall internal structure. Simulated and measured results show that VSWR ≤ 2 in the frequency range of 7.5–8.5 GHz. There is no grating lobe in the ±10° scanning range and the maximum gain drop does not exceed 0.4 dB. The power capacity of the proposed HPM array is 56.34 MW. The phased array antenna has the characteristics of flexible scanning, small size, and high gain, and can be applied in high-power microwave systems.

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A 3D Printed Ka-Band High-Efficiency Wide-Slit Antenna Array for High-Power Microwave Applications

Cited by 2 publications

References 24 publications

Slotted-Waveguide Antenna Array Development by Means of Complementarity оf CST Microwave Studio and Compass 3D Programs

Slotted-Waveguide Antenna Array Development by Means of Complementarity оf CST Microwave Studio and Compass 3D Programs

X-Band Active Phased Array Antenna Using Dual-Port Waveguide for High-Power Microwave Applications

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