Pass-band reconfigurable spoof surface plasmon polaritons

Zhang, Hao Chi; He, Pei Hang; Gao, Xinxin; Tang, Wenxuan; Cui, Tie Jun

doi:10.1088/1361-648x/aaab85

Cited by 48 publications

(31 citation statements)

References 27 publications

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“…They have unique advantages of extraordinary field confinements and enhancements. [36][37][38], the work proposed in this article has a unique advantage in multichannel signal processing due to the ability of controlling fundamental mode and high-order modes of SSPPs simultaneously. The proposed SSPP unit structure is a metallic strip loaded with split rings (SRs) on both sides, which has more compact electrical size compared to the conventional corrugated metallic strip.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the works proposed in refs. [36][37][38], the work proposed in this article has a unique advantage in multichannel signal processing due to the ability of controlling fundamental mode and high-order modes of SSPPs simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23][24][25][26][27] However, only a few works for the dynamic manipulation of SSPPs have been reported at both terahertz [28][29][30] and microwave [16,[31][32][33][34][35] frequencies, and that most of them are simply tunable SSPPs rather than programmable ones. Recently, the concepts of programmable SSPPs to realize three digital-analog functionalities, [36] reconfigurable SSPPs to realize frequency spectrum tunable SSPPs filter, [37] and tunable spoof surface plasmon transmission line (SSP-TL) to construct a compact and frequency-reconfigurable Wilkinson power divider [38] have been proposed one after another. [15,16,31] However, these designs usually suffer from the shortcomings of narrow rejection band and poor stability due to the strong resonance of the SRRs.…”

mentioning

confidence: 99%

“…[15,16,31] However, these designs usually suffer from the shortcomings of narrow rejection band and poor stability due to the strong resonance of the SRRs. Recently, the concepts of programmable SSPPs to realize three digital-analog functionalities, [36] reconfigurable SSPPs to realize frequency spectrum tunable SSPPs filter, [37] and tunable spoof surface plasmon transmission line (SSP-TL) to construct a compact and frequency-reconfigurable Wilkinson power divider [38] have been proposed one after another. However, they can only control the fundamental mode of SSPPs.Spoof surface plasmon polaritons (SSPPs) can be supported and propagated on metal surfaces decorated with periodic subwavelength structures, whose dispersion properties are determined by geometrical dimensions of unit structures.…”

mentioning

confidence: 99%

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Programmable Controls of Multiple Modes of Spoof Surface Plasmon Polaritons to Reach Reconfigurable Plasmonic Devices

Wang

Feng

Tang

et al. 2019

Adv Materials Technologies

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conductors (PECs) instead of plasmas with negative permittivity. In order to realize similar SPPs at low frequencies, the concept of spoof surface plasmon polaritons (SSPPs) was proposed since 2004 by decorating a series of 3D periodically artificial structures on the metal surface. [2][3][4][5][6] To overcome the complexity of 3D structures, an ultrathin corrugated metallic strip was proposed in 2013 to support and guide the SSPPs with high confinement even when it was bent, twisted, or wrapped arbitrarily. [7] To integrate such a single-conductor SSPP transmission line with the conventional two-conductor microwave transmission lines efficiently, some matching transitions were proposed to make a smooth conversion between the SSPP modes and traditional guided-wave modes. [8,9] Hereafter, many related works have been reported based on SSPPs, [10][11][12][13][14][15][16][17][18][19][20] which have advantages of low transmission loss, highly localized fields, low crosstalk, and so on.Recently, programmable metamaterials and metasurfaces have been developed greatly for the dynamic manipulation of electromagnetic (EM) waves, which give the possibility for a single device to possess different functionalities that can be electrically switched through field programming. [21][22][23][24][25][26][27] However, only a few works for the dynamic manipulation of SSPPs have been reported at both terahertz [28][29][30] and microwave [16,[31][32][33][34][35] frequencies, and that most of them are simply tunable SSPPs rather than programmable ones. For example, by placing the split-ring resonators (SRRs) close to the plasmonic waveguide, the resonance of the SRR will introduce a narrow rejection band, whose central frequency can be tuned by controlling the resonant response of the SRRs. [15,16,31] However, these designs usually suffer from the shortcomings of narrow rejection band and poor stability due to the strong resonance of the SRRs. Recently, the concepts of programmable SSPPs to realize three digital-analog functionalities, [36] reconfigurable SSPPs to realize frequency spectrum tunable SSPPs filter, [37] and tunable spoof surface plasmon transmission line (SSP-TL) to construct a compact and frequency-reconfigurable Wilkinson power divider [38] have been proposed one after another. However, they can only control the fundamental mode of SSPPs.Spoof surface plasmon polaritons (SSPPs) can be supported and propagated on metal surfaces decorated with periodic subwavelength structures, whose dispersion properties are determined by geometrical dimensions of unit structures. However, the functions of plasmonic devices made of the conventional passive SSPPs will be fixed once the devices are fabricated. Here, an electronically controlled programmable SSPP waveguide is presented, whose dispersions can be manipulated in real time at fast speed by programing the bias voltage instead of changing the dimensions of the unit structures. There are three different modes at different frequency bands, with a forbidden band existing between the...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Programmable Controls of Multiple Modes of Spoof Surface Plasmon Polaritons to Reach Reconfigurable Plasmonic Devices

Wang

Feng

Tang

et al. 2019

Adv Materials Technologies

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“…Recently, the concepts of reconfigurable and programmable of spoof plasmonic metamaterials have been proposed. Based on the reconfigurable spoof SPPs, some devices with adjustable frequency and nonlinear phenomena are realized . Further than that, three different digital–analog functionalities can be realized by coding representation in a simple programmable system, and a dual‐channel spoof SPP logic “AND” gate was proposed by programming controlled of multiple modes of spoof SPPs…”

Section: The Modified Em Parameters In the Equivalent Circuit Modelingmentioning

confidence: 99%

Programmable Hybrid Circuit Based on Reconfigurable SPP and Spatial Waveguide Modes

Gao

Zhang

et al. 2019

Adv Materials Technologies

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miniaturization of devices. In 2013, Shen et al. proposed a planar SPP waveguide with ultrathin and flexible properties. [9] Subsequently, nearly perfect conversions from spatial to SPP modes are introduced to realize high-efficiency transmissions of spoof SPPs. [10] Spoof SPPs not only possess the property of natural SPPs with field enhancement but also have their advantages, including low loss, low crosstalk, easy integration, and miniaturization. The electromagnetism physical properties of the spoof SPP device can be designed by tuning geometrical parameters. Thus, a large number of passive devices based on spoof SPPs have been reported utilizing the advantage of spoof SPP waveguide, such as filters, couplers, power dividers, and antennas. [11][12][13][14][15][16][17][18][19][20][21] Additionally, the hybrid circuits based on substrate integrated waveguide (SIW) and spoof SPP waveguide have been reported because SIW has some advantages of the significant reduction in cost, loss and radiation, and easy integration. [22,23] For passive metamaterials, their functionalities are fixed after the fabrication, which severely limits the practical values. To freely control EM waves, digital coding and programmable metamaterials are adopted in microwave frequency. [24][25][26][27][28][29][30][31] Recently, the concepts of reconfigurable and programmable of spoof plasmonic metamaterials have been proposed. Based on the reconfigurable spoof SPPs, some devices with adjustable frequency and nonlinear phenomena are realized. [32][33][34][35][36][37] Further than that, three different digital-analog functionalities can be realized by coding representation in a simple programmable system, [38] and a dual-channel spoof SPP logic "AND" gate was proposed by programming controlled of multiple modes of spoof SPPs. [39] In this work, a three-port programmable hybrid circuit is proposed and investigated, which consists of two spoof SPP waveguides loaded with the varactor diodes and the SIW. By manipulating the dispersion behaviors, EM waves only can propagate with operating frequencies lower than the cutoff frequency of the SPP waveguide but higher than that of SIW. The proposed three-port waveguide can realize the functionalities of the power division and the filtering around X-band, even Ku-band, while the corresponding transmission for the power division is around −4 dB in whole operating frequency bands. Besides, a logic "OR" gate with 2-bit coding can also A programmable hybrid circuit is proposed, which is composed of two reconfigurable spoof surface plasmon polariton (SPP) waveguides loaded with varactor diodes and a substrate integrated waveguide (SIW). By manipulating their dispersion behaviors, the band-pass effect is achieved in the hybrid circuit, in which the upper and lower cutoff frequencies are determined by the SPP waveguide and SIW, respectively. When two SPP waveguides are configured to have the same cutoff frequency that is higher than the SIW's cutoff, the proposed circuit can realize a power division; when one SP...

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Concept, Theory, Design, and Applications of Spoof Surface Plasmon Polaritons at Microwave Frequencies

Tang

Zhang

Feng

et al. 2018

Advanced Optical Materials

177

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Surface plasmon polaritons (SPPs) are highly localized surface waves that exist on the interface of two media with opposite permittivities at optical frequencies. To produce spoof SPPs at microwave or terahertz frequencies, plasmonic metamaterials have been proposed by making subwavelength structures on a metal surface. Spoof SPPs inherit the properties of natural SPPs, including dispersion characteristics, field confinement, and subwavelength resolution, and therefore are highly expected to offer new solutions for advanced circuits and systems with high integration, compact size, and excellent performance. In this article, the development of spoof SPPs in recent years is reviewed, focusing primarily on the basic concept, theory, design method, and applications in microwave engineering. First, the concept and theory of SPPs and spoof SPPs are introduced, along with development from bulky waveguides to ultrathin transmission lines (TLs) and the unique merits of this new type of TL. Then, the design method is studied, including the feeding strategy of spoof SPP TLs and the realization of reconfigurable spoof SPPs. Recent progress on the engineering realization of plasmonic circuits is also demonstrated, including passive SPP circuits, active SPP devices, and SPP antennas. Finally, the future directions and potential applications of microwave spoof SPPs are discussed.

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Pass-band reconfigurable spoof surface plasmon polaritons

Cited by 48 publications

References 27 publications

Programmable Controls of Multiple Modes of Spoof Surface Plasmon Polaritons to Reach Reconfigurable Plasmonic Devices

Programmable Controls of Multiple Modes of Spoof Surface Plasmon Polaritons to Reach Reconfigurable Plasmonic Devices

Programmable Hybrid Circuit Based on Reconfigurable SPP and Spatial Waveguide Modes

Concept, Theory, Design, and Applications of Spoof Surface Plasmon Polaritons at Microwave Frequencies

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