摘要
A multi-channeled filter based on branchy defect in a microstrip photonic crystal was proposed. By introducing a branchy structure across the defect region, multiple defect modes will appear inside the photonic gap, leading to the multi-channeled filtering phenomenon. In comparison with the conventional multi-channeled filters, the proposed structure is more compact and tunable as far as the device volume and fabrication are concerned. The microwave experiment results are found in agreement with simulation results.
基金
Project supported by the National Key Basic Research Program of China (2001CB610406), the National Natural Science Foundation of China (10474072, 50477048), and the Shanghai Science and Technology Committee
