Dual-band independent phase control based on high efficiency metasurface [Invited]

Jinxing Li; Yueyi Yuan; Qun Wu; Shah Nawaz Burokur; Kuang Zhang

doi:10.3788/COL202119.100501

Journals >Chinese Optics Letters >Volume 19 >Issue 10 >Page 100501 > Article

Chinese Optics Letters
Vol. 19, Issue 10, 100501 (2021)

Dual-band independent phase control based on high efficiency metasurface [Invited]

Jinxing Li¹, Yueyi Yuan¹, Qun Wu¹, Shah Nawaz Burokur², and Kuang Zhang^1、*

Author Affiliations

¹Department of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, China

²LEME, UPL, Université Paris Nanterre, F92410 Ville d’Avray, France

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DOI: 10.3788/COL202119.100501 Cite this Article Set citation alerts

Jinxing Li, Yueyi Yuan, Qun Wu, Shah Nawaz Burokur, Kuang Zhang. Dual-band independent phase control based on high efficiency metasurface [Invited][J]. Chinese Optics Letters, 2021, 19(10): 100501 Copy Citation Text

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Abstract

A general method to realize arbitrary dual-band independent phase control is proposed and demonstrated in this paper. A double-layered C-shape reflective meta-atom is designed to realize independent phase control with high efficiency. As a proof of concept, we propose two functional metasurfaces in the microwave region; the first metasurface performs beam steering in different directions, and the second metasurface generates achromatic beam steering at two distinct frequencies. Both simulation and measurement results agree well with the theoretical pre-setting. The maximum measured efficiency is 88.7% and 92.3% at 6.8 GHz and 8.0 GHz, respectively, for one metasurface, and 91.0% and 89.8% at 6.9 GHz and 8.6 GHz, respectively, for the other.

Keywords

dual-band geometric phase high efficiency independent phase control metasurface microwave reflection

R = (\begin{matrix} r_{x x} & r_{x y} \\ r_{y x} & r_{y y} \end{matrix}) = (\begin{matrix} | r_{x x} | e^{j φ_{x x}} & | r_{x y} | e^{j φ_{x y}} \\ | r_{y x} | e^{j φ_{y x}} & | r_{y y} | e^{j φ_{y y}} \end{matrix}),

(1)

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r_{+ +} = \frac{1}{2} [r_{x x} - r_{y y} + j (r_{x y} + r_{y x})],

(2)

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φ (\overset{⇀}{r}, f_{i}) = - \frac{2 π f_{i}}{c} \overset{⇀}{r} \cdot \overset{⇀}{D} \sin θ_{b s} + ϕ_{i},

(3)

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R_{RCP} = \frac{\int_{- x}^{x} \int_{- y}^{y} E_{R_RCP}^{2} d y d x}{\int_{- x}^{x} \int_{- y}^{y} E_{R_T}^{2} d y d x},

(4)

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Jinxing Li, Yueyi Yuan, Qun Wu, Shah Nawaz Burokur, Kuang Zhang. Dual-band independent phase control based on high efficiency metasurface [Invited][J]. Chinese Optics Letters, 2021, 19(10): 100501

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