A spatial power limiter using a nonlinear frequency selective surface

Chen, Zhenzhen; Xing, Chen; Xu, Guanghui

doi:10.1002/mmce.21205

Cited by 22 publications

(4 citation statements)

References 16 publications

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“…On the basis of FSS, Yang Cheng et al first reported the energy selective surface (ESS), which looks like a limiter, with pin-diode for EMP protection which only sensitive to the power density or field intensity of incident wave [9]. Subsequently, a spatial power limiter using a nonlinear FSS was researched combining the frequency selection characteristics of FSS and the energy selection characteristics of ESS [10,11]. However, as planar structures, the aforementioned structures should be fabricated at the front end of antenna to defend HPM and HPEM threats, just like a radome, which takes a lot of space and will inevitably affect the antenna pattern.…”

Section: Introductionmentioning

confidence: 99%

Energy Selective Filter with Power-Dependent Transmission Effectiveness in Waveguide

Lin

Zhang

et al. 2019

Electronics

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A novel Energy Selective Filter (ESF) mounted in waveguide is presented based on nonlinear element, which is sensitive to the power intensity of incident wave achieving frequency selection as well as energy selection. The proposed ESF consists of three parts, the middle circuit board with diode loaded, the upper and bottom ground metallic patches. The mechanism of the ESF is analyzed through equivalent circuit model and its performance is investigated numerically and experimentally. According to the waveguide measurement, a shielding effectiveness of 13 dB is achieved in case of high power input and the insertions loss is less than 0.3 dB across the whole frequency range when low power signal inputs. It is a pluggable component in waveguide that could reflect high power signals of specific frequency to protect the following electronic equipment.

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Section: Introductionmentioning

confidence: 99%

Energy Selective Filter with Power-Dependent Transmission Effectiveness in Waveguide

Lin

Zhang

et al. 2019

Electronics

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“…Then, Yang Cheng et al first reported the energy selective surface (ESS), like a limiter, with pin-diode for EMP protection, which only sensitive to the power density or field intensity of incident wave [12], [19], [20]. Subsequently, a spatial power limiter using a nonlinear FSS was researched combining the frequency selection characteristics of FSS and the energy selection characteristics of ESS [21], [22]. However, as planar structures, aforementioned structures should be implemented at the front end of antenna to defend HPM and HPEM threats, just like a radome, which takes a lot of space and will inevitably affect the radiation of antenna [23].…”

Section: Introductionmentioning

confidence: 99%

Waveguide Energy-Selection-Filter Switch Array

Lin

Liu

et al. 2019

IEEE Access

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This paper presents a waveguide energy-selection-filter switch (ESFS) array for high-power microwave protection, which has a nonlinear transmission response depending on the power intensity of the incident wave. A prototype of nine unit-cells loaded with pin diodes is designed and measured. First, the relationship between the unit-cell dimension and frequency response is analyzed by the full-wave simulation, and an equivalent circuit is studied with numerical fitting. Then, the non-linear characteristics of the unit-cell for different power levels are observed by using an electric field probe. Subsequently, the array structure is designed with equivalent circuits made to evaluate the performance and the coupling effects between the array elements. At the same time, the influence of the number of elements on the transmission coefficient is discussed. Finally, the nonlinear and adaptive transmission characteristics of the ESFS array are demonstrated by the waveguide measurements, which show an isolation improvement of 19.5 dB for high-power microwave protection compared to a single ESFS unit. In addition, the protecting band is wider than that of a single unit. INDEX TERMS Adaptive protection, energy-selection-filter, high power microwave, pin diode loaded, waveguide.

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“…An FSS consisted of PIN diodes and metal grid was designed for the limiting of linear polarized wave [5]. To realize polarization independence, several symmetric FSSs were reported [6–9]. The comparison of different self-actuated FSSs is shown in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Design and realization of a self-actuated frequency-selective radome integrated with microstrip antenna

Zhou

Liu

et al. 2018

Int. J. Microw. Wireless Technol.

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In this paper, a self-actuated frequency-selective radome is presented and applied to a microstrip antenna. The radome acts as a self-triggered switchable screen to achieve adaptive electromagnetic protection in the L band. A prototype of the radome is fabricated to measure its transmission performance. The switchable characteristic is verified by a high-power radiation experiment carried out in a waveguide system. Besides, the antenna is placed under the radome to realize integration analysis, and the radiation performance of the composite antenna radome is measured in the anechoic chamber.

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A spatial power limiter using a nonlinear frequency selective surface

Cited by 22 publications

References 16 publications

Energy Selective Filter with Power-Dependent Transmission Effectiveness in Waveguide

Energy Selective Filter with Power-Dependent Transmission Effectiveness in Waveguide

Waveguide Energy-Selection-Filter Switch Array

Design and realization of a self-actuated frequency-selective radome integrated with microstrip antenna

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