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本文研究使用微带平行耦合线窄带带通滤波器抑制谐波的阶跃恢复二极管微带倍频器的精确设计,就如何提高倍频器的性能进行了探讨,总结了四分之一波长谐振线修正公式以及对应于滤波器中心频率的谐振器长度修正公式,给出一个实际电路的CAD数据。测试结果表明:该倍频器距中心频率±500kHz处的杂波抑制大于65dB,距中心频率±500MHz处的谐波抑制达到50dB。根据本文所述方法设计的倍频器,具有调试方便、体积小、重量轻、可靠性高等优点,已用于最近发射成功的新型中国通信卫星与气象卫星星载测控系统之中。
In this paper, the exact design of step-recovery diode microstrip multiplier using microstrip parallel coupled narrowband band-pass filter to suppress harmonics is studied. The performance of the frequency multiplier is discussed. The quarter-wavelength resonant The line correction formula and the resonator length correction formula corresponding to the center frequency of the filter give the CAD data of an actual circuit. The test results show that: the frequency multiplier from the center frequency ± 500kHz clutter suppression greater than 65dB, from the center frequency ± 500MHz harmonic suppression at 50dB. The frequency multiplier designed according to the method described herein has the advantages of convenient debugging, small size, light weight and high reliability, and has been used in the newly launched China Satellite Communications and Meteorological Satellite Onboard Measurement and Control System which has been successfully launched recently.