Title :
A novel cavity with size-independent resonant frequency realized by left-handed material
Author :
Chin, Yao ; Cui, Tie Jun ; Cheng, Qiang ; Yao, Yuhua
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
A new cavity that is composed of left-handed material (LHM) has been proposed. The cavity has size-independent resonant frequency and very high quality factor. In a 2D closed square cavity, the first and third quadrants are filled with LHM and the other two quadrants are filled with right-handed material (RHM). Both LHM and RHM are realized using the LC-loaded transmission line networks. Simulations have been conducted using Agilent´s advanced design system (ADS) to investigate the physical properties of the cavity. Analytical and simulation results prove that the new cavity´s resonant frequency is independent of the size of cavity. When the surface resistance of the enclosure is considered, the new cavity has a much higher quality factor compared to a conventional cavity.
Keywords :
Q-factor; cavity resonators; metamaterials; surface resistance; transmission lines; 2D closed square cavity; LC-loaded transmission line networks; left-handed material; quality factor; resonant cavity; right-handed material; size independent resonant frequency; surface resistance; Computational electromagnetics; Conducting materials; Laboratories; Magnetic resonance; Metamaterials; Permeability; Permittivity; Q factor; Resonant frequency; Surface resistance; Left-handed material; quality factor; resonant cavity; size-independent;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606745
