Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Milad Zolfagharloo Koohi"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:919-925
Publikováno v:
IEEE Microwave and Wireless Components Letters. 31:662-665
An intrinsically switchable ferroelectric barium strontium titanate (Ba( x )Sr(1– x )TiO3, BST)-based film bulk acoustic resonator (FBAR) quad channel filter bank is presented for the first time. The design incorporates a matching network free of t
Publikováno v:
IEEE Microwave Magazine. 21:120-135
Wireless communication has become an integral part of our lives, continuously improving the quality of our everyday activities. A multitude of functionalities are offered by recent generations of mobile phones, resulting in a significant adoption of
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 67:1025-1032
Reconfigurable bulk acoustic wave filters provide a number of advantages for wireless communication systems, including compact size, cost effectiveness, and less complexity. This article presents the design methodology of an intrinsically switchable
Publikováno v:
2021 IEEE MTT-S International Microwave Symposium (IMS).
In this work, a nonlinear circuit model has been developed to account for the full electrostriction coupling physics in ferroelectric bulk acoustic wave (BAW) resonators. This new model divides the BAW resonator into thin layers and locally treats th
Publikováno v:
2020 IEEE/MTT-S International Microwave Symposium (IMS).
An intrinsically switchable balanced lattice-ladder ferroelectric thin film bulk acoustic resonator (FBAR) filter is presented for the first time. A 1.5 stage balanced ladder-type filter and a 2-pole lattice-type filter with a center frequency at 2 G
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 67(9)
Mode-switchable ferroelectric thin-film bulk acoustic resonators (FBARs) are presented. Such resonators operate based on a dynamic nonuniform effective piezoelectricity in composite multilayer ferroelectrics with large electrostriction coefficients,
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 66:5501-5507
An intrinsically switchable and frequency reconfigurable bulk acoustic wave filter bank based on ferroelectric barium strontium titanate (BST) is presented. Ferroelectric BST possesses electric-field-induced piezoelectricity, enabling the design of v
Publikováno v:
2019 IEEE MTT-S International Microwave Symposium (IMS).
An intrinsically switchable ferroelectric barium strontium titanate (BST) stacked crystal filter (SCF) is presented for the first time. A single pole BST SCF is designed for a second overtone (mode 2) operating at 3.6 GHz. The fabricated device provi
Publikováno v:
2019 IEEE MTT-S International Microwave Symposium (IMS).
The development of wireless communication systems with more complexity, greater functionality, and multi-band operation imposes new challenges on the RF front end design. Ferroelectric barium strontium titanate (Ba (x) Sr (1-x) TiO 3 , BST) incorpora