Minimizing the impact of ground reflection on high power microwave E-field measurement</p>

Jiang Tingyong; Gao Lin; Liu Xiaolong; Ning Hui

doi:10.11884/HPLPB201527.123007

Volume 27 Issue 12

Jan. 2016

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(12): 123007

Wang Weijie, Zhou Haijing. Surface electromagnetic modes of SiC and non-linear optimization[J]. High Power Laser and Particle Beams, 2015, 27: 103206. doi: 10.11884/HPLPB201527.103206

Citation:

Jiang Tingyong, Gao Lin, Liu Xiaolong, et al. Minimizing the impact of ground reflection on high power microwave E-field measurement

[J]. High Power Laser and Particle Beams, 2015, 27: 123007. doi: 10.11884/HPLPB201527.123007

Wang Weijie, Zhou Haijing. Surface electromagnetic modes of SiC and non-linear optimization[J]. High Power Laser and Particle Beams, 2015, 27: 103206. doi: 10.11884/HPLPB201527.103206

Citation:

Jiang Tingyong, Gao Lin, Liu Xiaolong, et al. Minimizing the impact of ground reflection on high power microwave E-field measurement

[J]. High Power Laser and Particle Beams, 2015, 27: 123007. doi: 10.11884/HPLPB201527.123007

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Minimizing the impact of ground reflection on high power microwave E-field measurement

doi: 10.11884/HPLPB201527.123007

1.
Department of Engineering Physics,Tsinghua University,Beijing 100084,China;
2.
Science and Technology on High Power Microwave Laboratory,Northwest Institute of Nuclear Technology,Xi’an 710024,China

Received Date: 2015-09-20
Rev Recd Date: 2015-10-21
Publish Date: 2015-11-26

Abstract

Abstract

This paper presents a new measuring method of minimizing the impact of ground reflection on the microwave electronic field measurement using double antenna array. The character of ground reflection is studied using the electromagnetic geometric optics theory and the electromagnetic wave propagation formula in layered media. Then a theoretical formula for computing the oscillating period of ground scattering pattern is derived. The impact of ground reflection on the transversal field and vertical field is simulated using the FDTD method, and the effect of minimizing the ground reflection with double antenna array is also validated by simulation, it shows that the impact of ground reflection is decreased from 4 dB to less than 0.6 dB, which improves the accuracy of the high power microwave radiation field measurement.
- high power microwave,
- E-field measurement,
- ground reflection,
- double antenna array

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