| 摘要: |
| 提出了一种用无源谐振腔和有源电路相结合来实现高性能跳频滤波器的方法，利用开关电容
阵加载腔体实现高速宽带低损的频率跳变。重点对这种跳频滤波器的插
损和功率两个指标进行分析，包括腔体无载品质因数、PIN开关的功率和插损、加载射频
电容的插损。利用三维电磁仿真软件HFSS和平面电路仿真软件ADS，结合具体的技术指标要
求，给出了跳频滤波器部分电路的仿真曲线和测试结果。本滤波器具有高速、宽带、低损、
体积小和数控的特点，因此可以广泛应用于跳频通信、软件无线电等领域。 |
| 关键词: 跳频滤波器 无源谐振腔 有源电路 品质因数 开关电容阵 |
| DOI： |
|
| 基金项目: |
|
| Design of a High performance Frequency hopping Filter |
| YANG Ling-ling |
| (Southwest China Institute of Electronic Technology，Chengdu 610036，China) |
| Abstract: |
| A high-performance frequency-hopping(FH) filter is designed by using the method
of the active switc
hed capacitor load to passive resonator. The switched capa
citor array loaded cavity is used to realized high-speed broadband low-loss
frequency hopping.
The two indexes(insertion loss and power) of the FH filter,including c
avity unloaded quality factor,switching power and insertion loss, insertion l
oss of load RF capacitance are analysed.By using three-dimensional electromagnet
ic simulation
software HFSS and planar circuit simulation software ADS，part corresponding sim
ulation curves and t
est results of the filter are provided according to specific te
chnical requirements. This filter is featured by high-speed, broadband, low loss
, small size and dig
ital control, and can be widely used in FH communi
cations, software radio and other fields. |
| Key words: frequency-hopping filter passive resonator active circuit quality factor switc
hed capacitor array |
