Title :
An S-band left-handed tunable phase shifter based on BST thin film
Author :
Lei-Qiang Ma ; Fan-Yi Meng ; Xiao-Xin Liu ; Peng-Yuan Wang
Author_Institution :
Sch. of Electron. & Inf. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
An S-band left-handed tunable phase shifter based on Barium-Strontium-Titanate (BST) thin film is developed. The application of left-handed transmission line considerably reduces the size of the phase shifter. The phase shift reaches about 124 degree while the permittivity of the BST film ranges from 225 to 450. The Figure of Merits (FoM) of the phase shifter reaches up to 42.48 °/dB as the insertion loss keeps about -3dB from 2.1GHz to 2.6GHz. Moreover, the coplanar strip structure of the phase shifter makes it suitable for balanced components.
Keywords :
UHF phase shifters; barium compounds; microwave phase shifters; permittivity; strip lines; strontium compounds; telecommunication transmission lines; thin film devices; BST thin film; Ba1-xSrxTiO3; FoM; S-band left-handed tunable phase shifter; barium-strontium-titanate thin film; coplanar strip structure; figure of merit; frequency 2.1 GHz to 2.6 GHz; insertion loss; left-handed transmission line; permittivity; Dielectric losses; Films; Insertion loss; Microwave theory and techniques; Permittivity; Phase shifters; BST film; left-handed transmission line; tunable phase shifter;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992784
