Superconducting Tunable Composite Right/Left-Handed Transmission Lines Using Ferroelectric Thin Films with a Resistive Bias Network

Author

Wang, Yi ; Lancaster, Michael J. ; Huang, Frederick ; Suherman, Phe M. ; Holdom, Donna M. ; Jackson, Timothy J.

Author_Institution

Birmingham Univ., Birmingham

fYear

2007

fDate

3-8 June 2007

Firstpage

1415

Lastpage

1418

Abstract

Ferroelectric/superconductor thin films (Ba_0.05Sr_0.95TiO₃/YBa₂Cu₃O_7-delta) are used to realize an electrically tunable, low-loss composite right/left-handed transmission line. A resistive line is implemented as both DC bias path and RF choke. The whole device maintains an all-planar configuration. The composite right/left-handed transmission lines are well matched showing a wide pass band. As a phase shifter, the figure-of-merit of the device is evaluated and compared with that of a room-temperature device based on Ba_0.5Sr_0.5TiO₃ and silver. The effect of wire bonding on the performance is discussed.

Keywords

barium compounds; ferroelectric thin films; high-temperature superconductors; metamaterials; microwave phase shifters; phase shifters; strontium compounds; superconducting microwave devices; superconducting thin films; superconducting transmission lines; tuning; yttrium compounds; Ba_0.05Sr_0.95TiO₃-YBa₂Cu₃O₇; DC bias path; RF choke; all-planar configuration; composite right-left-handed transmission line; ferroelectric-superconductor thin films; phase shifter; resistive bias network; superconducting low-loss tunable transmission lines; tunable low-loss right/left-handed transmission line; wire bonding effect; Bonding; Ferroelectric materials; Inductors; Phase shifters; Radio frequency; Silver; Strontium; Superconducting thin films; Superconducting transmission lines; Wire; Tunable circuits and devices; ferroelectric films; high-temperature superconductors; left-handed transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380497

Filename

4264102