An acoustic bending waveguide designed by anisotropic density-near-zero metamaterial
Wang Yang-Yang1, Ding Er-Liang1, Liu Xiao-Zhou1, 2, †, 
, Gong Xiu-Fen1
, Gong Xiu-Fen1 Pressure field distribution in a “T”-shape channel filled with ADNZ metamaterial. (a) The schematic diagram of the “T” channel, where ports 1, 2, and 3 are filled with water, symmetrical corners are filled with ADNZ metamaterial, and their boundaries are hard walls. (b) Transmitting from port 1 to ports 2, 3 and (c) transmitting with ADNZ metamaterial replaced by water. (d) Transmitting from ports 2 and 3 to port 1. (e) Transmitting with ADNZ metamaterial replaced by water.
