A Flexible High-Selectivity Single-Layer Coplanar Waveguide Bandpass Filter Using Interdigital Spoof Surface Plasmon Polaritons of Bow-Tie Cells

Pan, Leidan; Wu, Yongle; Wang, Weimin; Wei, Yiwen; Yang, Yuhao

doi:10.1109/tps.2020.3023441

Cited by 35 publications

(11 citation statements)

References 23 publications

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“…Finally, some important conclusions are obtained through the test [8]. Pan and others proposed a video information leakage prevention method based on dithering and image fusion, that is, by dithering the camouflage information, increasing its high-frequency component, and superimposing it with the useful information without dithering [9]. Park and others proposed a password based on oblique tent mapping.…”

Section: Literature Reviewmentioning

confidence: 99%

Antileakage Technology of Computer Video Information Encryption Based on Digital Information Method

Sun

Jiao

2022

Security and Communication Networks

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In order to better realize and ensure the security performance of network information itself, various possible risks must be prevented in advance, and a more reliable operation environment must be created as much as possible. A research study on computer video information encryption and antileakage technology based on the digital information method is proposed. Through the research on the working principle of computer display systems, this paper analyzes the common leakage sources. On this basis, it analyzes how to protect the electromagnetic wave leaked from the computer display system. Finally, it is proposed that the protective measure adopted in this paper is (transient electronic pulse emission survey technology, tempest) technology; that is, the image is processed at the source of image information to reduce the electromagnetic radiation of useful information. The corresponding digital filter is designed by fir, and the combined filtering of digital filter and analog filter is applied to eliminate the inherent disadvantage of periodic fluctuation of insertion loss of the digital filter. The research results show that the receiver before filtering can receive video images at multiple frequency points such as 20 MHz, 160 MHz, 220 MHz, 250 MHz, 270 MHz, 290 MHz, and 340 MHz, while the receiver after filtering can only receive video images at two frequency points of 20 MHz and 250 MHz, but it cannot recognize the words in the figure, and its effect is very obvious. It verifies the correctness and effectiveness of the theoretical analysis in this paper.

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Section: Literature Reviewmentioning

confidence: 99%

Antileakage Technology of Computer Video Information Encryption Based on Digital Information Method

Sun

Jiao

2022

Security and Communication Networks

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“…The proposal of the ultrathin and flexible SSPP waveguide makes it possible to reach practical applications of compact SSPP devices and circuits in the microwave and terahertz frequencies. [14][15][16][17][18][19][20][21][22] In addition, the SSPP leaky-wave antennas (LWAs) have attracted much attention in recent years, which have advantages of low profile, low cost, and flexible design. [23][24][25][26][27][28][29][30][31][32][33][34] As the rapid development of wireless communications, the technology of multibeam radiations and multipolarization modulations has attracted more and more attention and may find practical application in point-to-multipoint communications (e.g., satellite communications and personal terminals).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dual‐Beam Leaky‐Wave Radiations with Independent Controls of Amplitude, Angle, and Polarization Based on SSPP Waveguide

Cheng

Feng

Wang

et al. 2022

Advanced Photonics Research

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New dual‐beam leaky‐wave radiations based on spoof surface plasmon polariton (SSPP) waveguide, in which the amplitude, radiation, angle and polarization of each beam can be designed independently, is proposed. The proposed SSPP waveguide is made of a corrugated metallic strip with bilateral 45°‐tilted grooves, whose surface impedance is flexibly designed by changing the depth of grooves. To realize dual‐beam leaky‐wave radiations, the surface impedance of SSPP waveguide is modulated periodically based on the superposition theory of aperture fields. By simply adjusting the modulation factors, modulation periods, and initial phase differences of the modulated surface impedance, the amplitude, radiation angle, and polarization of each beam can be further controlled independently as well. The results have been validated by both numerical simulations and experimental measurements, which show good agreement with the theoretical predictions.

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“…6 SSPP TL is a new type of slow-wave TL with low dielectric loss and low crosstalk used at microwave and THz bands. Since then, planar SSPP TL has been widely used in a variety of RF circuits and devices, [7][8][9][10][11][12][13][14] such as filters, splitters, and leaky wave antennas. However, the planar SSPP composed of corrugated metal is an open structure, and radiation loss and poor selectivity are inevitable.…”

Section: Introductionmentioning

confidence: 99%

A high‐performance mode multiplexer based on hybrid spoof surface plasmon polariton and substrate integrated waveguide

Zhang

Liu

Zheng

et al. 2022

Int J RF Mic Comp-Aid Eng

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A Flexible High-Selectivity Single-Layer Coplanar Waveguide Bandpass Filter Using Interdigital Spoof Surface Plasmon Polaritons of Bow-Tie Cells

Cited by 35 publications

References 23 publications

Antileakage Technology of Computer Video Information Encryption Based on Digital Information Method

Antileakage Technology of Computer Video Information Encryption Based on Digital Information Method

Dual‐Beam Leaky‐Wave Radiations with Independent Controls of Amplitude, Angle, and Polarization Based on SSPP Waveguide

A high‐performance mode multiplexer based on hybrid spoof surface plasmon polariton and substrate integrated waveguide

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