Title :
A Thin and Broadband Absorber Using Double-Square Loops
Author :
Yang, Juan ; Shen, Zhongxiang
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
This letter presents a design of thin and broadband absorbers using a two-dimensional (2-D) periodic array of double-square loops printed on a dielectric substrate. Lumped resistors are inserted into the four sides of the loops to absorb the incident electromagnetic wave. Simulated and measured results for the radar cross-section (RCS) of a finite 2-D array of double-square loops are in good agreement and both show that the novel absorber can reduce a conducting plate´s RCS greatly over a wide frequency range.
Keywords :
electromagnetic wave absorption; lumped parameter networks; radar cross-sections; resistors; RCS; broadband absorber; dielectric substrate; double-square loops; finite 2D array; incident electromagnetic wave; lumped resistors; radar cross-section; thin absorber; two-dimensional periodic array; Bandwidth; Dielectric substrates; Equivalent circuits; Frequency selective surfaces; Inductance; Metamaterials; Periodic structures; Radar cross section; Resistors; Slabs; Broadband absorber; RCS reduction; double-square loops; periodic structures;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.903496
