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Design Of Tunable Band Pass Filter Using Barium Strontium Titanate (BST) Thin Films

Vemulapalli, Sreekanth
http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304697174

Abstract Details

2011, Master of Science (M.S.), University of Dayton, Electrical Engineering.
Barium strontium titanate (Ba1-xSrxTiO3) thin films exhibit unique properties like high dielectric constant, voltage tunable permittivity and small loss tangent which make it attractive in applications of tunable microwave devices. Following are some of the areas where ferroelectrics are applied (1) Random Access Memories (FERAM’s) (2) Integrated optics switches, couplers and modulators (3) piezoelectric resonators (4) Capacitors (5) Oscillators and (6) tunable filter. An effort is made to study and characterize the properties of BST thin films and to design a tunable band pass filter using their unique properties like tunable permittivity and low loss tangent. Different EM structures of IDC’s (Inter Digital Capacitors) are designed, tested, characterized and an effort is made to optimize the design for high Quality Factor (Q). A tunable band pass filter is designed, fabricated and tested for 1.72GHz center frequency. This is one of the foremost efforts made to design a band pass filter with Coplanar Wave Guide (CPW) transmission line components and BST varactor devices. The total length of the filter is 2.3mm.
Guru Subramanyam, PhD (Committee Chair)
Monish Chatterjee, PhD (Committee Member)
Robert Penno, PhD (Committee Member)
62 p.
Electrical Engineering
BST; band pass filter; IDC

Recommended Citations

Citations

  • Vemulapalli, S. (2011). Design Of Tunable Band Pass Filter Using Barium Strontium Titanate (BST) Thin Films [Master's thesis, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304697174

    APA Style (7th edition)

  • Vemulapalli, Sreekanth. Design Of Tunable Band Pass Filter Using Barium Strontium Titanate (BST) Thin Films. 2011. University of Dayton, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304697174.

    MLA Style (8th edition)

  • Vemulapalli, Sreekanth. "Design Of Tunable Band Pass Filter Using Barium Strontium Titanate (BST) Thin Films." Master's thesis, University of Dayton, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304697174

    Chicago Manual of Style (17th edition)

dayton1304697174
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© 2011, all rights reserved.
This open access ETD is published by University of Dayton and OhioLINK.