A NOVEL DESIGN APPROACH FOR DUAL-BAND ELECTROMAGNETIC BAND-GAP STRUCTURE

Li-Jing Zhang, Chang-Hong Liang, Le Liang, Liang Chen
2008 Progress In Electromagnetics Research M  
A novel compact dual-band electromagnetic band-gap (EBG) structure is proposed in this paper. The major contribution to this dual-band design is using cascaded mushroom-like units which operate at different frequencies. The position of via is moved off the center of the metal patch to get a lower resonant frequency and the effects of the radius of via are considered at the same time. The method of suspended microstrip is utilized to measure the band-gap characteristics of the EBG structures.
more » ... EBG structures. Several dual-band EBG structures are designed and compared. Results show that this novel cascaded structure offers additional flexibility in controlling the frequencies of the stopband over a wide range. The cascaded dualband EBG structure has potential application to dual-band antenna and circuit.
doi:10.2528/pierm08071107 fatcat:kf6rgdkcynfrhcwnhbbnhpqc64