Q波段宽带功率合成倍频器的设计  

Design of a broad Q-band power-combining frequency multiplier

作　　者：乔欣然 刘敬 陈振华[1] QIAO Xinran;LIU Jing;CHEN Zhenhua(Institute of Electronic Information Technology and Equipment,College of Electronic and Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学电子与信息工程学院电子信息技术与装备研究院,江苏南京210044

出　　处：《电子元件与材料》2022年第10期1078-1084,1092,共8页Electronic Components And Materials

基　　金：国家自然科学基金(61601232)。

摘　　要：提出了一款输出频率覆盖整个Q波段的高功率固态有源四倍频器模块。倍频器基于混合集成电路技术实现,采用有源二倍频—功率放大—功率分配—无源二倍频—功率合成的拓扑结构。在前级采用基于悬置带线的180°反相器进行功分器设计,以实现宽带性能以及结构紧凑性。在无源二倍频时,采用两个分立的MA4E1310肖特基二极管组成非平衡倍频结构获取其二次谐波,并通过波导双探针进行合成输出,以此突破单个二极管的功率容量制约,进而提高倍频输出功率。测试结果表明,固态倍频源模块在5.5 V/0.9 A的直流偏置以及5 dBm的输入功率下,可以在33~50 GHz全波导频率范围内获得15~19 dBm的输出功率。A solid-state active frequency quadrupler was proposed to cover the full Q-band and produce high output power.The quadrupler module was realized based on hybrid integrated process and featured the topology of active frequency doubling,power amplification,power splitting,passive frequency doubling and power-combining.To achieve broadband operation and compactness,a suspended strip line based phase inverter was adopted in the power splitter.Two discrete MA4E1310 diodes were used to form an unbalanced topology,and the desired second harmonic signals were combined with the waveguide-dual-probe structure.Therefore,the restriction on power handling capability by a single Schottky diode was removed,which hence produced increased power.The measurement shows that at 5 dBm input power and DC bias of 5.5 V/0.9 A,the developed module can produce an output power of 15-19 dBm in the full waveguide band of 35-50 GHz.

关 键 词：Q波段 全频段 宽带 倍频 功率合成 

分 类 号：TN771[电子电信—电路与系统]