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http://dx.doi.org/10.7776/ASK.2009.28.6.491

Design of Isolation-Type Matching Network for Underwater Acoustic Piezoelectric Transducer Using Chebyshev Filter Function  

Lee, Jeong-Min (국방과학연구소)
Lee, Byung-Hwa (국방과학연구소)
Baek, Kwang-Ryul (부산대학교 전자.전기공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.28, no.6, 2009 , pp. 491-498 More about this Journal
Abstract
This paper presents the design method of an impedance matching network using an isolation transformer and the Chebyshev filter function for the high efficiency and the flat power driving of an underwater acoustic piezoelectric transducer. The proposed impedance matching network is designed for minimizing the reactance component of transducer and having the flat power response in the wide frequency range. We design a low pass filter with ladder-type circuit using the Chebyshev function as standard prototype filter function. In addition, we design the impedance matching network which is suitable for the equivalent circuit of transducer and the turn ratio of transformer through the bandpass frequency transformation. The proposed method is applied to the simulated dummy load of the tonpilz-type transducer operating in the middle frequency range. The simulation results are compared with the measured characteristics and the validity of the proposed method is verified.
Keywords
Tonpilz piezoelectric Transducer; Matching network; Ladder-type filter; Transformer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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