Affiliation:
1. School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, Guizhou, P. R. China
Abstract
Two novel composite structures that couple a sonic crystal waveguide (SCW) to a self-collimating sonic crystal (SCSC) are proposed to control beam divergence and transmission. Finite element simulations indicate that an SCSC attached to the output of an SCW can reduce the half-power angular width by 48.81% and enhance the normal radiation intensity by 104.17%. This is due to both the high self-collimation properties and low interference of SCSCs. A composite consisting of four SCWs coupled via an SCSC exhibits high transmission with low cross talk when multiple signals are introduced. The proposed composites could be important in the SCW directional emission and SCW-based integrated circuit development.
Funder
the National Natural Science Foundation of China
the Innovation Team Foundation of the Education Department of Guizhou Province
the Guizhou Province Science and Technology Innovation Talent Team
the Doctor Foundation of Guizhou Normal University
Key laboratory of low dimensional condensed matter physics of higher educational institution of Guizhou province
Publisher
World Scientific Pub Co Pte Lt
Subject
Applied Mathematics,Computer Science Applications,Acoustics and Ultrasonics
Cited by
2 articles.
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