Design of Multiband Microstrip BSFs with and without SMD Capacitors

In this book, the design of multiband bandstop filters (BSFs) based on defected ground structure (DGS) technique is presented and simulated. The filters are loaded by surface-mount device (SMD) capacitors for dual and triple stopbands operated at 3.69/7.63 GHz and 3.2/5.56/7.28 GHz, respectively. An additional BSF structure without SMD capacitors operated at 3.77/7.16 GHz is as well designed and fabricated. Due to their satisfactory stopband performances, the proposed filters can be useful for various communication systems with dual and triple bands rejection for WiMAX/C bands.

Autorentext

Challal Mouloud (M 09 SM 16) is an Associate Professor at the Institute of Electrical and Electronic Engineering of Boumerdes University, Algeria. His main research interests are in RF/Microwaves Circuits and Antennas. He has published more than 75 research papers in int. conferences and journals. Also, he is a reviewer for several refereed Int. J.