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Jpn. J. Appl. Phys. 43 (2004) pp. 6274-6277  |Previous Article| |Next Article|  |Table of Contents|
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Radiation Impedance Calculation for Arbitrarily Shaped Piston

Jun Yang^1,2, Kan Sha¹, Woon-Seng Gan¹ and Jing Tian²

¹School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, 639798, Singapore
²Institute of Acoustics, Chinese Academy of Sciences, 17 Zhongguancun Street, Beijing 100080, China

(Received February 15, 2004; accepted May 27, 2004; published September 9, 2004)

A general solution for determining self- and mutual-radiation impedances for rectangular radiators is presented in a closed form with a double integral. Using this solution, an efficient calculation method is developed for the radiation impedance of an arbitrarily shaped piston in a rigid infinite baffle. The proposed algorithm is verified by its agreement with previously published results for square pistons. Its utility is demonstrated with an example of radiation impedance of a circular piston.

KEYWORDS: radiation impedance, mutual coupling, calculation method, transducer, arbitrarily shaped piston
URL: http://jjap.ipap.jp/link?JJAP/43/6274/
DOI: 10.1143/JJAP.43.6274

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