小型化铷原子频标微波高次倍频器的设计与研究

Analysis and Design of Miniaturization High Order Microwave Multiplier for Rubidium Atomic Frequency Standard

依据阶跃恢复二极管高次倍频原理,采用同轴滤波器,设计了一种小型化铷原子频标的微波高次倍频器。测试结果表明:该倍频器的输入信号频率为40 MHz;倍频次数为171;输出信号频率为6840 MHz;微波输出功率优于-25 dBm。该倍频器接入铷原子频标系统,实现了闭环锁定,符合小型化铷原子频标的要求。

A high order miniature microwave frequency multiplier is designed by adopting the step recovery diode and cylindrical coaxial cavity resonator for a passive rubidium atomic frequency standard.The test results show that the input signal frequency is 40 MHz,the order of multiplication is 171,the output signal frequency is 6 840 MHz,the output power is better than-25 dBm,and the rejection ratio to the adjacent harmonics is better than 15 dB.When the multiplier is linked with the rubidium atomic frequency standard,the close loop locking can be realized.Thus the multiplier satisfies the needs of miniature passive rubidium atomic frequency standard.