Title :
A 60-GHz 2-bit Switched-Line Phase Shifter Using SP4T RF-MEMS Switches
Author :
Gong, Songbin ; Shen, Hui ; Barker, N. Scott
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Virginia, Charlottesville, VA, USA
fDate :
4/1/2011 12:00:00 AM
Abstract :
This paper presents a V -band 2-bit switched-line phase shifter using dc-contact single-pole four-throw (SP4T) RF microelectromechanical systems (RF-MEMS) switches for 60-GHz applications. The design and measurements of the SP4T RF-MEMS switches and the phase shifter are presented. The phase shifter demonstrates an average insertion loss of 2.5 dB in the 55-65-GHz band with a return loss better than 12 dB for each state. The phase error for each state of the switched-line phase shifter is less than 1° at 60 GHz.
Keywords :
contact resistance; microswitches; millimetre wave phase shifters; contact resistance; dc-contact single-pole four-throw RF-MEMS switches; frequency 55 GHz to 65 GHz; insertion loss; loss 2.5 dB; phase error; return loss; switched-line phase shifter; Coplanar waveguides; Delay; Delay lines; Insertion loss; Integrated circuit modeling; Phase shifters; Switches; 60 GHz; Broadband; cantilever; contact resistance; dc-contact; low loss; microelectromechanical systems (MEMS); phase arrays; phase shifters; series switch;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2011.2112374
