基于LTCC技术的手机天线开关滤波器  

Low Pass Filter Based on LTCC Technology in an Antenna Switch Module

作　　者：朱彦青[1] 许正荣[1,2] 戴雷[1] 陈新宇[1,2] 

机构地区：[1]南京电子器件研究所,南京210016 [2]南京国博电子有限公司,南京210016

出　　处：《固体电子学研究与进展》2013年第1期52-56,共5页Research & Progress of SSE

摘　　要：采用LTCC工艺进行手机天线开关滤波器的设计,用于手机天线开关发射端GSM850/900MHz、GSM1800/1 900MHz。整个LTCC滤波器体积为2.5mm×3.2mm×0.75mm,其中包含两个低通滤波器,用于二次谐波和三次谐波的抑制。GSM850/900通带插损小于0.75dB,带内二次谐波抑制度大于23dBc,三次谐波抑制度大于40dBc;GSM1 800/1 900通带插损小于0.7dB,带内二次谐波抑制度大于26dBc,三次谐波抑制度大于28dBc。The paper provides a new designed structure for LTCC low pass filter. Two low pass filters are used for transmitter channel in an antenna switch module. Their whole size is only 2.5 mm × 3.2 mm × 0.75 mm with good performance. The insertion loss of the GSM850/900 MHz LPF is only 0.75 dB, the second and third harmonic suppression is 23 dBc and 40 dBc re- spectively. The insertion loss of the GSM1 800/1 900 MHz LPF is less than 0. 7 dB, the second and third harmonic suppression is 26 dBc and 28 dBc respectively.

关 键 词：低温共烧陶瓷 低通滤波器 谐波抑制度 通带插损 

分 类 号：TN713[电子电信—电路与系统]