TY - CPAPER
KW - Thin films
KW - Annealing
KW - Substrates
KW - Manganese
KW - Lanthanum compounds
KW - Ferroelectric materials
KW - Permittivity
KW - Semiconductor doping
KW - Barium compounds
KW - Magnesia
KW - Antenna phased arrays
KW - Phase shifters
KW - Microstrip devices
KW - Coupled microstrip phase shifters
KW - Film thickness
KW - Thin ferroelectric films
AU - F.W Van Keuls
AU - C.H Mueller
AU - F.A Miranda
AU - R.R Romanofsky
AU - C.L Canedy
AU - S Aggarwal
AU - T Venkatesan
AU - Ramamoorthy Ramesh
AU - J.S Horwitz
AU - W L Chang
AU - W.J Kim
AB - We report on measurements taken on thirteen Ku-band coupled microstrip phase shifters (CMPS) using thin ferroelectric films of BaxSr1-xTiO3. This CMPS design is a recent innovation designed to take advantage of the high tunability and tolerate the high dielectric constant of ferroelectric films at Ku- and K-band frequencies. These devices are envisioned as a component in low-cost steerable beam phased array antennas. Comparisons are made between devices with differing film thickness, annealed vs. unannealed, Mn-doped vs. undoped, and also substrates of LaAlO3 and MgO.
BT - IEEE MTT-S International Microwave Symposium Digest
LA - eng
N1 - cited By 37
N2 - We report on measurements taken on thirteen Ku-band coupled microstrip phase shifters (CMPS) using thin ferroelectric films of BaxSr1-xTiO3. This CMPS design is a recent innovation designed to take advantage of the high tunability and tolerate the high dielectric constant of ferroelectric films at Ku- and K-band frequencies. These devices are envisioned as a component in low-cost steerable beam phased array antennas. Comparisons are made between devices with differing film thickness, annealed vs. unannealed, Mn-doped vs. undoped, and also substrates of LaAlO3 and MgO.
PB - IEEE, Piscataway, NJ, United States
PY - 1999
SP - 737
EP - 740
T2 - IEEE MTT-S International Microwave Symposium Digest
T3 - IEEE MTT-S International Microwave Symposium Digest
TI - Room temperature thin film BaxSr1-xTiO3 Ku-band coupled microstrip phase shifters: effects of film thickness, doping, annealing and substrate choice
VL - 2
SN - 0149645X
ER -