Title :
Design on antenna switch module for dual band phone (GSM/UMTS) using LTCC technology
Author :
Dai, Yong-sheng ; Xiao, Sheng-Lei ; Chen, Shao-Bo ; Dai, Bing-Qing ; Wang, Li-Jie ; Xu, Li ; Zhou, Cong ; Yu, Qiu-Shan ; Zhang, Hong ; Yang, Jian ; Chen, Xi
Author_Institution :
Sch. of Electron. Eng. & Optoelectric Technol., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
This paper presents the results of an antenna switch module integrating a switch (SP9T) and two low-pass filters for harmonic rejection on a low temperature co-fired ceramic (LTCC) substrate. This contributes not only to reduce the size and weight, but also to shorten the development term of RF circuit and simplify the assembly process. It will be used for GSM/UMTS dual mode cellular phones. The 50-ohm in/out FEM utilized a GaAs PHEMT switch is attached to the LTCC substrate. S-parameter characterization of FEM demonstrated excellent insertion, return loss and isolation characteristics of ASM. The final three-dimension model occupied a volume of 4.5 mm × 3.2 mm × 1.4 mm.
Keywords :
3G mobile communication; cellular radio; ceramic packaging; field effect transistor switches; low-pass filters; microwave switches; mobile antennas; mobile handsets; multifrequency antennas; telecommunication switching; GSM phone; GaAs PHEMT switch; LTCC technology; RF circuit; UMTS phone; antenna switch module; dual mode cellular phone; harmonic rejection; low temperature co-fired ceramic substrate; low-pass filters; Filtering theory; Insertion loss; Low pass filters; Microwave filters; Radio frequency; Switches;
Conference_Titel :
Signals Systems and Electronics (ISSSE), 2010 International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6352-7
DOI :
10.1109/ISSSE.2010.5607096
