Fw. Van Keuls et al., A Ku-band gold BaxSr1-xTiO3/LaAIO(3) conductor thin-film ferroelectric microstrip line phase shifter for room-temperature communications applications, MICROW OPT, 20(1), 1999, pp. 53-56
We report on the performance of a Ku-band gold/ Ba0.5Sr0.5TiO3/LnAlO(3) (Au
/BSTO/LAO) coupled microstip line phase shifter fabricated with a 370 nm th
ick BSTO film. Two hundred degrees of contiguous relative insertion phase s
hift (Delta phi(S21)) with insertion losses of 4.6 dB, were measured at roo
m temperature, 14.3 GHz, and maximum de voltage of 400 V. These results rep
resent significant progress toward viable compact, low-loss, thin-film ferr
oelectric-based phase shifters nr room temperature. (C) 1999 John Whey & So
ns, Inc.