开关滤波器组的研制  

Research and Fabrication of Switch Filter Bank

作　　者：张宇平[1] 高翠琢[1] 

机构地区：[1]中国电子科技集团公司第十三研究所,石家庄050051

出　　处：《半导体技术》2009年第6期598-601,共4页Semiconductor Technology

摘　　要：选频网络广泛用于通信领域,开关滤波器是选频网络中的关键部件。开关滤波器组采用PIN开关和腔体滤波器技术,用ANSOFT仿真软件和HFSS高频仿真软件进行电路优化设计,管芯采用烧结工艺,产品的测试结果为通道隔离≥80dBc、带外抑制≥70dBc(矩形系数为2)、频率为8.4～18.4GHz,通过5路滤波器组实现,每个滤波器带宽为2GHz。电路的优化设计有效地改善了开关滤波器通道隔离度和带外抑制等技术指标,由于开关电路的频率范围宽,通过改变滤波器的频率,可形成系列化开关滤波器组产品。Switch filter bank is a key device in frequency-selective net which is widely used in communication field. With technology of pin switch and cavity filter, optimization of ANSOFT and HFSS software, technics of chips sinter, switch filter bank achieves high specifications： isolation ≥ 80 dBe, sideband rejection ≥70 dBe （squareness factor is 2）, frequency range is from 8.4 to 18.4 GHz. Frequency band is divided into 5 equal interval which is 2 GHz. Isolation and sideband rejection have been improved by optimized design. Series of products can be manufactured according to frequency of filter with wide frequency band switches.

关 键 词：开关 滤波器 隔离度 带外抑制 

分 类 号：TN713[电子电信—电路与系统]