基于IFM的小型化线性射频放大器设计  

Design of Miniature Linear RF Amplifier Based on IFM

作　　者：王青平[1] 张晓发[1] 谭渊[1] 袁乃昌[1] 

机构地区：[1]国防科技大学电子科学与工程学院微波中心,长沙410073

出　　处：《半导体技术》2012年第2期114-117,共4页Semiconductor Technology

摘　　要：采用六级VMMK-2503高线性度增益方块级联,插入增益均衡与带通滤波模块,设计了一款小型化线性射频放大器,在5.8～8 GHz频带内,其小信号增益达70 dB,增益平坦度小于±1 dB,输入输出驻波比等技术指标优良。由于VMMK-2503采用晶片级封装技术与内匹配设计,电路设计简单,缩短了研发周期,降低了设计成本,提高了技术指标,有利于射频电路的小型化与集成化,放大器电路尺寸仅为92 mm×9 mm×1.2 mm。并对其进行了模块电磁兼容设计,以提高组件稳定性,最终满足用户要求,已成功用于某型号瞬时测频接收机中。Six-stage VMMK- 2503 high-linearity gain blocks, combined with gain equalizing and band-filter module, were cascaded to achieve an miniature linear RF amplifier. In the frequency-range of 5.8 -8.0 GHz, its small signal gain reaches 70 dB, while gain flatness is less than ± 1 dB, and other technical indicators such as standing wave ratio are excellent. As a result of chip-scale packaging technology and internaly matching design of VMMK - 2503, the circuit design is simple, which shortened the development cycle, reduced the design costs, improved technical indicators, and is favorable to the miniaturization and integration of RF circuit. The size of amplifier is only 92 mm × 9 mm × 1.2 mm. The electromagnetic compatibility design was carried on to improve the stability of the module. Having met the requirements of users, the amplifier has been successfully used in some model of instantaneous frequency measurement （ IFM）.

关 键 词：瞬时测频接收机 射频放大器 增益均衡 小型化 单片微波集成电路 

分 类 号：TN722.1[电子电信—电路与系统]