Title :
A 4-bit switched-line phase shifter based on MEMS switches
Author :
Yulin Huang ; Jingfu Bao ; Xinyi Li ; Yiling Wang ; Yijia Du
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper presented a 4-bit switched-line phase shifter based on the metal-contact SPDT RF MEMS switches. The phase shift module was fabricated on a 20mil RO4350 substrate and mounted with its driver module on an Aluminum platform. This electrically tunable phase shifter is suitable for taking place of mechanical phase shifters used in base station. Measurements indicated a maximum phase shift of 75 degree with a step of 5 degree, a maximum insertion loss of 0.89dB and a minimum return loss of 13.4dB at 2.7GHz. The phase accuracy is within 2 degree at 2.7 GHz.
Keywords :
aluminium; driver circuits; microswitches; microwave switches; phase shifters; Al; RO4350 substrate; aluminum; base station; driver module; frequency 2.7 GHz; insertion loss; loss 0.89 dB; loss 13.4 dB; mechanical phase shifters; metal-contact SPDT RF MEMS switches; phase shift module; return loss; switched-line phase shifter; tunable phase shifter; Micromechanical devices; Microswitches; Phase measurement; Phase shifters; Radio frequency; Transmission line measurements; MEMS switch; measurement; phase shifter; switched-line;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2015 IEEE 10th International Conference on
Conference_Location :
Xi´an
DOI :
10.1109/NEMS.2015.7147454
