Title :
Dual-Band Negative Permittivity Metamaterial Based on Cross Circular Loop Resonator With Shorting Stubs
Author :
Zhong, Jingping ; Huang, Yongjun ; Wen, Guangjun ; Sun, Haibin ; Gordon, Oghenemuero ; Zhu, Weiren
Author_Institution :
Key Lab. of Broadband Opt. Fiber Transm. & Commun. Networks, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
In this letter, a novel design of dual-band negative permittivity metamaterial is presented, which is based on a cross circular loop resonator (CCLR) with shorting stubs. The electromagnetic characteristics of this metamaterial are analyzed straightforwardly by an equivalent circuit. Numerical simulations and microwave experiments are further employed to illustrate the theoretical expectations. Moreover, the dependence between both the two frequencies and the positions of shorting stubs are discussed. Our results open a way to design the dual-notched ultrawideband (UWB) antennas and filters and dual-band metamaterial absorbers.
Keywords :
equivalent circuits; metamaterials; microwave antennas; microwave filters; microwave materials; microwave resonators; notch filters; numerical analysis; ultra wideband antennas; CCLR; cross circular loop resonator; dual-band metamaterial absorbers; dual-band negative permittivity metamaterial; dual-notched UWB antennas; dual-notched UWB filters; dual-notched ultrawideband antennas; dual-notched ultrawideband filters; electromagnetic characteristics; equivalent circuit; microwave experiments; numerical simulations; shorting stubs; Dual band; Equivalent circuits; Magnetic materials; Metamaterials; Permittivity; Resonant frequency; Wires; Cross circular loop resonator (CCLR); dual-band; metamaterial; negative permittivity; shorting stubs;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2208172
