Title :
The influence of material constants on band gaps of piezoelectric phononic crystal
Author :
Han, Jun-chang ; Zhan, Zheng-qiang ; WEI, Pei-jun
Author_Institution :
Dept. of Math. & Mech., Univ. of Sci. & Technol. Beijing, Beijing
Abstract :
Band gaps of 2D piezoelectric phononic crystal and the influence of material constants are studied. Dispersive equations of 2D phononic crystal with piezoelectric ceramic cylinders embedded periodically in polymer host are derived based on plane wave expansion method firstly. Then, dispersive equations are numerically solved and the wave band gap distribution is obtained in the first Brillouin zone. The influence on wave band gap of elastic constants, piezoelectric constants and dielectric constants are compared and some interesting conclusions are finally given.
Keywords :
Brillouin zones; energy gap; permittivity; phononic crystals; piezoelectricity; Brillouin zone; band gaps; dielectric constants; dispersive equations; elastic constants; material constants; piezoelectric ceramic cylinders; piezoelectric constants; piezoelectric phononic crystal; plane wave expansion method; polymer host; Ceramics; Crystalline materials; Crystals; Dielectric constant; Dielectric materials; Dispersion; Equations; Photonic band gap; Piezoelectric materials; Polymers; Brillouin zone; Phononic crystal; band gap; piezoelectricity; plane wave expansion;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2891-5
DOI :
10.1109/SPAWDA.2008.4775809
