| 摘要: |
| 利用阶跃恢复二极管的强非线性特点，设计了一个输入信号频率100 MHz、输出信号频率0
.9～1.4 GHz的梳状谱电路，经开关滤波器电路处理后可以实现6个单频点输出。梳状谱电
路经
优化设计和调试，以较低的驱动功率实现了模块高稳定输出。在-55℃～+85℃工作温度范围
内、输入信号功率0～+3 dBm条件下，梳状谱电路驱动功率为20 dBm左右，测试模块输出信
号功率变化小于1.5 dB，附加相位噪声劣化小于1 dB。 |
| 关键词: 滤波器 梳状谱电路 阶跃恢复二极管 低附加相位噪声 高幅
度稳定性 |
| DOI： |
|
| 基金项目: |
|
| Design and implementation of an L-band comb spectrum generator with high-amplitude stability |
| HAN Peng-fei |
| (The 13th Research Institute of China Electronics Technology Group Corporation，Shijiazhuang 050051，China) |
| Abstract: |
| A 0.9 GHz to 1.4 GHz comb spectrum generator with 100 MHz input signal is design
ed based on high non-linear characteristic of step recovery diode. Six single ou
tput signal can be attained through a switch filter circuit. By optimization of
design and adjustment high-amplitude stability of the module output power is rea
lized with low comb spectrum generator drive power. The variation of output powe
r is not more than 1.5 dB and the addtional phase noise is not more than 1 dB, a
t temperature -55℃～+85℃ and input power 0～+3 dBm，at the same time the drive
power of the comb spectrum generator is about 20 dBm. |
| Key words: filter comb frequency spectrum generator step recovery diode low addtional phase noise high-amplitude stability |
《电讯技术》编辑部 