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本文介绍了卫星广播电视接收机用中心频率140MHz,3dB带宽为20MHz的声表面波滤波器的设计,给出了器件的性能和使用结果。
This paper introduces the design of the SAW filter with the center frequency of 140MHz and the 3dB bandwidth of 20MHz for the satellite broadcasting and TV receiver, and gives the performance and the usage result of the device.