Review Article
Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors
Figure 24
Layout of a microstrip filter formed by three balanced CRLH CSRR-based cells (a) and measured frequency response (b). In (b) are also depicted the simulated insertion and return loss for a two-, three-, and four-stage device filters. The metallic parts are depicted in black in the top layer, and in grey in the bottom layer. Dimensions are total length , line width , external radius of the outer rings , rings width , and rings separation ; the interdigital capacitors are formed by 28 fingers separated 0.16 mm. From [18]; copyright © 2007 IEEE; reprinted with permission.
