Comparative analysis of edge- and broadside-coupled split ring resonators for metamaterial design - Theory and experiments

Abstract

and F. Martin, Novel small resonant electromagnetic particles for metamaterial and filter design, Int Conf Electromagn Adv Applic (ICEAA), Torino, Italy, 2003. 13. M. Shamonin, E. Shamonina, V. Kalinin, and L. Solymar

Design of Cross-Coupled Dual-Band Filter With Equal-Length Split-Ring Resonators

“…Split-ring resonators were used as one of the particles for metamaterial construction [13], and have been applied for microstrip band-pass filters to reduce circuit dimensions relying on the fact that these resonators can be designed with dimensions much smaller than signal wavelength at their resonant frequency. However, an interesting character has not been exploited until it was presented in [10] recently.…”

Compact Two-Layer Microstrip Bandpass Filters Using Broadside-Coupled Resonators

“…The rings can be either square or circular in shape. Square SRRs are preferred to enhance magnetic coupling [12,15,24]. Thus by etching SRRs on both sides of a thin dielectric slab, the distributed capacitance between the rings can be significantly enhanced owing to the broadside coupling [11] which results in a lower resonant frequency compared to the edge-coupled SRRs.…”

“…The main contribution of this paper is to make use of broadside coupled resonators [12] in multilayer technology to achieve miniaturization to a greater extent, without the use of ground planes with apertures or vias. The resonator on one layer is 180 • inverted with respect to the resonator in another layer and achieve coupling without any apertures in the ground plane.…”

“…Sub-wavelength structures such as open-loop resonators, splitring resonators (SRRs), miniaturized hair-pin resonators and other microstrip structures have been successfully used to design compact filters at microwave frequencies [5,[13][14][15][16][17][18][19][20][21][22][23], since these resonators can be designed with dimensions much smaller than the signal wavelength at their resonant frequency. Broadside coupled split-ring resonators with cross coupling are chosen to serve the purpose of implementing the multilayer filter compared to the conventional splitring resonators [12] to eliminate the cross-polarization effects [24] and to realize miniaturized structures. In order to improve the selectivity of the bandpass filter, cross-coupling is introduced among the resonators to achieve elliptic function response with a pair of attenuation pole at finite frequencies, thereby improving selectivity [25].…”

Application of Double Zero Metamaterials as Radar Absorbing Materials for the Reduction of Radar Cross Section

“…We intend to introduce a class of materials called double zero (DZR) metamaterials [1][2][3][4][5][6][7][8][9], of which the permittivity and permeability are purely imaginary [namely Re(ε r ) = 0 & Re(µ r ) = 0]. Similarly, we may consider epsilon zero (EZR) metamaterials, of which the permittivity is purely imaginary [namely Re(ε r ) = 0 & Re(µ r ) = 0] and mu zero (MZR) metamaterials, of which the permeability is purely imaginary [namely Re(ε r ) = 0 & Re(µ r ) = 0].…”