Frequency Scanning Radiation by Decoupling Spoof Surface Plasmon Polaritons via Phase Gradient Metasurface

Yang, Fan; Wang, Jiafu; Li, Yongfeng; Zhang, Jieqiu; Qu, Shaobo; Han, Yiping; Chen, Hongya

doi:10.1109/tap.2017.2767625

Cited by 87 publications

(40 citation statements)

References 29 publications

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“…In ref. [50], the authors proposed to directly and easily control the radiation of SSPP via reflective phase gradient metasurface (RPGM). However, since the phase gradient d φ/ d x is not a constant as the frequency changes, the working bandwidth is limited and there is initial reflection and decoupling effect with RPGM.…”

Section: Introductionmentioning

confidence: 99%

Planar Spoof Surface Plasmon Polariton Antenna by Using Transmissive Phase Gradient Metasurface

Wang

Cai

et al. 2020

Annalen der Physik

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Spoof surface plasmon polariton (SSPP) antennas are of particular importance in communication and radar systems. Currently available SSPP radiation devices are limited to low performance with high side‐lobes because it is extremely challenging to accurately control the wave vector of SSPP and the inherent momentum mismatch between the SSPP and spatial waves. Inspired by the optical principle of reversibility, high‐performance radiation control of SSPP is proposed to be achieved with transmissive phase gradient metasurface (TPGM). The TPGM, placed a meticulously optimized distance above the SSPP propagation structure, can provide an additional opposite wave vector to match the momentum between the SSPP and spatial waves. When the propagating SSPP transmits on the TPGM, it can be decoupled into the free space accurately and flexibly. Numerical results coincide well with the measurements, indicating that the radiation control of SSPP achieves high‐performance and low side‐lobe within 9 to 10.5 GHz with the measured radiation efficiency higher than 50%. The measured maximum efficiency appears at 9.8 GHz for 69%. Thanks to the flexible and accurate manipulation of the dispersion relation of SSPP provided by TPGM, the findings may open an avenue in achieving larger angle scanning antenna.

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Section: Introductionmentioning

confidence: 99%

Planar Spoof Surface Plasmon Polariton Antenna by Using Transmissive Phase Gradient Metasurface

Wang

Cai

et al. 2020

Annalen der Physik

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“…According to the principle of reversibility, SSPPs can also be converted into free-space radiation, which has potential applications in leaky-wave antennas [16][17][18][19][20][21][25][26][27][28][29]. Continuous beam scanning leaky-wave antenna can be achieved by circular patches loaded periodically along one side of the SSPP transmission line.…”

Section: Introductionmentioning

confidence: 99%

“…In 2015, Cui et al have achieved efficient conversion of surface-plasmon-like modes to spatial radiated modes by controlling phase modulations produced by the reflective phase gradient metasurface (RPGM) [25,26]. Qu et al have also proposed a frequency scanning antenna by decoupling SSPP via RPGM [27,28]. The radiation angles are modulated by both the nonlinear phase gradient and the wave vector of SSPP.…”

Section: Introductionmentioning

confidence: 99%

Wide-Angle Frequency Scanning Metasurface Antenna Fed by Spoof Plasmonic Waveguide

Chen

Han

et al. 2020

IEEE Access

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We propose novel wide-angle frequency scanning metasurface antenna and antenna array fed by spoof plasmonic waveguide. The spoof plasmonic waveguide adopts the ultra-thin corrugated metallic strip which can support and propagate spoof surface plasmon polariton (SSPP) with high efficiency. By compensating the momentum difference between SSPP and free-space propagation modes via constant phase gradient, metasurface antenna can exhibit wide-angle and continuous radiation property according to the Generalized Snell's law. A prototype is designed, fabricated and measured, which consists of a wideband polarization rotating transmissive phase gradient metasurface (TPGM) placed a certain distance above spoof plasmonic waveguide. Such antenna works in a wideband range from 6.8 to 14.0 GHz, and the main beam can continuously scan from the forward direction to the backward direction with high efficiency. The measured results show that the scanning angle can reach 55°, which agree well with the simulated and theoretically calculated results. Furthermore, the proposed metasurface antenna can be combined easily as an antenna array with a simple feed network. Compared to single metasurface antenna, the antenna array exhibits the pencil-shaped directional radiation property, and the average gain of antenna array is obviously enhanced. The proposed frequency scanning metasurface antenna is of great value in the design of conformal antenna and the large aperture antenna array, especially on curved faces.

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“…The modulated MS with complex dimensions is used in References to improve the radiation pattern of antenna. Frequency and beam scanning transmissive gradient phase MS is presented for antenna applications in References . In References , to achieve high gain enhancement in broadside direction MS lenses are used in the far field of primary radiator.…”

Section: Introductionmentioning

confidence: 99%

“…A spoof surface plasmon polarization antenna is presented in Reference to achieve high gain with steered frequency scanning. Phase gradient metasurface antenna with spoof plasmon is used to achieve beam steering with varying gain in Reference . The metasurface lens antenna is presented in Reference to form cavity antenna and to achieve gain enhancement.…”

Section: Introductionmentioning

confidence: 99%

Compact ultrathin linear graded index metasurface lens for beam steering and gain enhancement

Singh

Abegaonkar

Koul

2020

Int J RF Microw Comput Aided Eng

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In this article, designing of a low-profile planar linear graded index metasurface (LGIMS) lens is presented. A wide-beam steerable high-gain low-profile antenna is designed by placing LGIMS over microstrip patch antenna radiator at an optimum height. Direction control of the radiation pattern of the microwave radiator by using amplitude and phase modulated metasurface is achieved. The measured peak gain of 13.50 dBi at an operating frequency of 10.08 GHz with progressively beam steering characteristic and progressive enhanced gain within a large conical region of apex angle 64 . The measured maximum gain tolerance of 2.43 dB with significantly reduced side lobe level is obtained by mechanically moving the ultrathin LGIMS lens along the negative parallel radiator axis. The mechanical movement of LGIMS lens over radiator results in to beam steering up to +32 . A maximum measured gain enhancement of 8.75 dB is achieved. The positive parallel radiator axis movement of LGIMS causes gradual broadside gain enhancement with maximum gain enhancement of 1.5 dB. The measured results are in good agreement with the simulated results. K E Y W O R D Sbeam steering, graded index metasurface, high gain patch antenna, lens antenna, metamaterial, modulated metasurface, phase correcting surface

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Frequency Scanning Radiation by Decoupling Spoof Surface Plasmon Polaritons via Phase Gradient Metasurface

Cited by 87 publications

References 29 publications

Planar Spoof Surface Plasmon Polariton Antenna by Using Transmissive Phase Gradient Metasurface

Planar Spoof Surface Plasmon Polariton Antenna by Using Transmissive Phase Gradient Metasurface

Wide-Angle Frequency Scanning Metasurface Antenna Fed by Spoof Plasmonic Waveguide

Compact ultrathin linear graded index metasurface lens for beam steering and gain enhancement

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