Design and near field characteristic of high power microwave dual-reflector antenna

Tiezhu, Liang; Huang, Wenhua; Shao, Hongxia; Wang, Kang-yi; Li, Jiawei; Huang, Huijun

doi:10.1109/icmmt.2012.6230396

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…where B is a constant related to the wave amplitude. Equation (5) gives the relationship between E far uv and E port . When the HPM antenna radiates HPM, the response function of the antenna's aperture feld can be expressed as…”

Section: Principles and Methodsmentioning

confidence: 99%

“…As high-power microwave (HPM) technology continues to develop, HPM systems have been widely applied in military, medical, energy, and other felds [1,2]. In simple terms, an HPM system consists of primary power, pulsed power, an HPM source, and an HPM antenna [3][4][5]. To evaluate the overall performance of an HPM system, it is necessary to obtain the equivalent isotropic radiated power (EIRP).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An EIRP Measurement Method of High-Power Microwave Systems Based on Near-Field Testing

Hu,

Su,

Zhang

et al. 2024

International Journal of Antennas and Propagation

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The equivalent isotropic radiated power (EIRP) of high-power microwave (HPM) systems is a core-evaluating indicator. In practical testing, locating a suitable test site for the far-field method becomes challenging due to the requisite antenna separation. The conventional near-field method necessitates the extraction of the antenna’s near-field distribution, resulting in a testing system of intricate complexity and diminished efficiency. Therefore, the traditional near-field method cannot be directly applied in HPM systems. In the present study, a new EIRP measurement method for HPM systems based on near-field testing was proposed. First, a monitoring antenna of a considerable scale is positioned within the near-field vicinity of the HPM antenna to capture radiation power, thereby deriving its equivalent input power. Subsequently, according to the EIRP definition and the measured gain of the HPM antenna, the EIRP of the HPM system can be acquired. Theoretical research on this measurement method was conducted, the electromagnetic simulation model was constructed, and a comprehensive analysis through simulation was undertaken. A measurement system was developed and verified experimentally. The results demonstrate the precision of this approach in determining the EIRP of the HPM system, thereby serving as a valuable tool for assessing the power-handling capability of the HPM antenna. The test error is ±0.5 dB.

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Section: Principles and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An EIRP Measurement Method of High-Power Microwave Systems Based on Near-Field Testing

Hu,

Su,

Zhang

et al. 2024

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…Traditional HPM antennas, such as Vlasov antennas [5], COBRA antennas [6][7][8], and large-aperture parabolic antennas [9], meet the needs of experiments and applications to some extent, but their large size, complex con guration, and low-radiation e ciency limit their applications. Later, radial spiral line array antennas [10], radial line slot arrays [11], and transmit-array antennas [12][13][14][15][16] were developed.…”

Section: Introductionmentioning

confidence: 99%

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

Liu¹,

Yang²,

Li³

et al. 2022

International Journal of Antennas and Propagation

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A Ka-band high-power waveguide wide-slit antenna array with high efficiency and high-power capacity is proposed in this paper. The antenna uses a waveguide vertical transition structure as a part of the feed network, which improves the compactness and power capacity of the antenna. A 2 × 8 antenna array was simulated, fabricated by 3D printed technology, and measured. The measured reflection coefficient is less than −10 dB in the range of 30.4–30.9 GHz, the tested gain at 30.8 GHz is 25.8 dB, and the corresponding aperture efficiency is larger than 80%. This antenna can be applied in high-power millimeter-wave systems.

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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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Design and near field characteristic of high power microwave dual-reflector antenna

Cited by 5 publications

References 11 publications

An EIRP Measurement Method of High-Power Microwave Systems Based on Near-Field Testing

An EIRP Measurement Method of High-Power Microwave Systems Based on Near-Field Testing

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

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

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