A novel design of metasurface antenna for multiple applications: Magnitude, phase, and radiation manipulation

Multifunctional metasurface triggers great interest due to their potential ability to manipulate the propagation of electromagnetic (EM) waves. Here, we propose a novel design of metasurface to realize EM wave magnitude, phase, and radiation manipulation. The metasurface unit cell consists of different structures with various functions. Double-square loops with lumped resistors can realize the absorption function to manipulate the reflected wave magnitude. Square spilt rings etched on the top and middle layers are to realize polarization conversion and phase manipulation. Finally, the radiation function is achieved through adding a feeding structure to a middle square patch of each unit. A 4 × 4 metasurface array is fabricated and tested to verify the design correctness. Both simulated and measured results indicate the sample can attain good radiation and scattering performance. The proposed metasurface offers a feasible strategy to design multifunctional metadevices and for other related practical applications.