A Novel Broadband Bi-Functional Metasurface for Vortex Generation and Simultaneous RCS Reduction | Zendy

Kai-Yue Liu | Zendy; Wen-Long Guo | Zendy; Guang-Ming Wang | Zendy; Hai-Peng Li | Zendy; Gang Liu | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A Novel Broadband Bi-Functional Metasurface for Vortex Generation and Simultaneous RCS Reduction

Author(s) -

Kai-Yue Liu,

Wen-Long Guo,

Guang-Ming Wang,

Hai-Peng Li,

Gang Liu

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2877745

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

In this paper, a broadband bi-functional metasurface is presented with capabilities of generating vortex beam for y-polarization and reducing the backward radar cross section (RCS) for x-polarization. With careful optimization, a meta-atom is first designed to control reflection phases for orthogonally polarized wave independently. Then, an integrated phase profile is employed to convert y-polarized spherical wavefront into a vortex spiral one, shaping a vortex high gain beam in the far-field region. By arranging a checkerboard-like phase profile onto the surface for x-polarization, the reflected wave in the backward direction will be canceled, consequently leading to the backward RCS reduction for x-polarization. Combining the above-mentioned cases into a whole, a compact bi-functional metasurface is designed, simulated, physically implemented, and finally measured. In good agreement with the simulated results, the measured ones show that the RCS reduction of 10 dB for x-polarization in comparison with a same-sized metallic plate can be realized over a 67.7 % frequency bandwidth (9-18.2 GHz). Besides, high-efficiency vortex beam conversion effect for y-polarization over a broad range of 11.2-18.2 GHz (47.6%) can also be observed from the measured results.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research