一种可调谐表面声波滤波器的原型

1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027) Pub Date : 1999-12-01 DOI:10.1109/ULTSYM.1999.849353

Jiahua Zhu, N. Emanetoglu, Yicheng Lu, J. Kosinski, R. Pastore, A. Lepore

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引用次数: 3

摘要

研制了一种可调谐表面声波滤波器样机。该装置由11个数字间换能器组成，并联在声呐传播路径上。通过选择或组合各种idt来实现不同的声波滤波器配置，从而实现中心频率和3db带宽的可调性。SAW滤波器的中心频率范围为126.8 MHz ~ 199.1 MHz, 3db带宽范围为18.8 MHz ~ 58.9 MHz。不同SAW滤波器配置之间的变化是通过RF开关实现的。

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A prototype of tunable surface acoustic wave filter

A prototype of tunable surface acoustic wave filter has been developed. The device consists of 11 interdigital transducers paralleled in the SAW propagation path. Different SAW filter configurations are realized by selecting or combining various IDTs, resulting in the tunability of both center frequency and 3 dB bandwidth. The center frequencies of the SAW filter ranges from 126.8 MHz to 199.1 MHz while the 3 dB bandwidth range from 18.8 MHz to 58.9 MHz. Changes between different SAW filter configurations is implemented by RF switches.

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来源期刊

1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027)

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