| P波段数控电调带通滤波器的设计 |
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| 引用本文： | 唐安琳,钱光弟,魏炜.P波段数控电调带通滤波器的设计[J].实验科学与技术,2009,7(2):13-14,84. |
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| 作者姓名： | 唐安琳 钱光弟 魏炜 |
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| 作者单位： | 电子科技大学自动化工程学院,成都,610054 |
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| 摘 要： | 研究了一种基于P波段的新型电调谐带通滤波器,采用前、后预选滤波器及中间运算放大器的结构。数字信号通过数模转换器和运算放大器实现数字信号与直流电压的转换,调谐变容二极管,调节带通滤波器的中心频率。实现了一个由8位二进制码控制的中心频率在悬50-110 MHz范围连续可调的电调谐带通滤波器,测试结果符合设计要求。
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| 关 键 词： | 数字控制 跳频速度 电调滤波器 线性化 |
Design of Digital controlled Electrically Tunable Bandpass Filter on the P Wave band |
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| TANG An-lin,QIAN Guang-di,WEI Wei.Design of Digital controlled Electrically Tunable Bandpass Filter on the P Wave band[J].Experiment Science & Technology,2009,7(2):13-14,84. |
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| Authors: | TANG An-lin QIAN Guang-di WEI Wei |
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| Institution: | (Inst. of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China) |
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| Abstract: | This paper studies a new electrically tunable bandpass filter based on the P wave-band. It uses the structure of two pre-filters before and after an operational amplifier. The distal signal is converted to the DC voltage by the D/A conveser and the operational amplifier, tuning varactor diodes, then adjusting the center frequency of the band pass filter. An electrically tunable bandpass filter which is controlled by 8-bit binary code is realized. Its center frequency can be continuously tuned in 50 - 110 MHz. The test result has met the design requirements. |
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| Keywords: | digital-control frequency hopping speed electrically tunable filter linearization |
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