Title :
A Novel Compact and Polarization-Dependent Mushroom-Type EBG Using CSRR for Dual/Triple-Band Applications
Author :
Peng, Lin ; Ruan, Cheng-Li ; Li, Zhi-Qiang
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this letter, a novel compact electromagnetic band-gap (EBG) structure constructed by etching a complementary split ring resonator (CSRR) on the patch of a conventional mushroom-type EBG (CMT-EBG) is proposed. The first bandgap is defined in all directions in the surface structure. Compared to the CMT-EBG structure, the CSRR-based EBG presents a 28% size reduction in the start frequency of the first bandgap. However, asymmetrical frames of the CSRR-based EBG result in different properties at X and Y-directions. Another two tunable bandgaps in Y-direction are observed. Thus, the proposed EBG can be used for multi-band applications, such as dual/triple-band antennas. The EBGs have been constructed and measured.
Keywords :
etching; microwave materials; multifrequency antennas; photonic band gap; resonators; compact electromagnetic band gap structure; complementary split ring resonator etching; dual antenna; dual band application; polarization dependent mushroom type EBG; triple band antenna; triple band application; Capacitance; Electromagnetic wave polarization; Etching; Frequency; Magnetic properties; Metamaterials; Optical ring resonators; Periodic structures; Photonic band gap; Surface structures; Complementary split ring resonator (CSRR); electromagnetic band-gap (EBG); mushroom- type EBG; polarization-dependent; size reduction;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2010.2051536
