Chinese Optics Letters, 2017, 15 (11): 111601, Published Online: Jul. 19, 2018
H-plane cross-shaped waveguide circulator in magneto-photonic crystals with five ferrite posts Download: 696次
Abstract
A novel H-plane cross-shaped circulator based on magneto-photonic crystals is experimentally investigated. The band gap of the TE mode for the photonic crystals is calculated by the plane wave expansion method. The transmission characteristics of the circulator are simulated by the finite element method. We perform the experiments in the microwave regime to validate the numerical results. At the central frequency of 10.15 GHz, the measured isolation and insertion loss of the circulator reaches 30.2 and 3.93 dB , respectively. The bandwidth of the circulator is about 550 MHz. The optimal experimental value of isolation is higher than the numerical value.
Yong Wang, Dengguo Zhang, Shixiang Xu, Biaogang Xu, Zheng Dong. H-plane cross-shaped waveguide circulator in magneto-photonic crystals with five ferrite posts[J]. Chinese Optics Letters, 2017, 15(11): 111601.