Compact Quadband Bandstop Filter Based on Concentric Split Ring Resonators with Perturbation for Multifunctional Wireless Systems

<div>Scattering parameters of the DSCSRR.</div>

International Journal of Antennas and Propagation

Figure 6: Compact Quadband Bandstop Filter Based on Concentric Split Ring Resonators with Perturbation for Multifunctional Wireless Systems 