Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3686615
DC FieldValue
dc.titleCoupled microstrip line microwave phase shifter using ferroelectric thin film varactors
dc.contributor.authorSheng, S.
dc.contributor.authorOng, C.K.
dc.date.accessioned2014-10-16T09:19:43Z
dc.date.available2014-10-16T09:19:43Z
dc.date.issued2012-02-15
dc.identifier.citationSheng, S., Ong, C.K. (2012-02-15). Coupled microstrip line microwave phase shifter using ferroelectric thin film varactors. Journal of Applied Physics 111 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3686615
dc.identifier.issn00218979
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96122
dc.description.abstractThis article presents a coupled microstrip line microwave phase shifter using ferroelectric thin film varactors with parallel plate electrodes integrated on high-resistivity silicon substrate. This design is proposed as a component in low-cost beam scanning phased array antennas. The phase shifter structure consists of coupled microstrip line periodically loaded with eight Ba xSr 1-xTiO 3 (BST) varactors and two planar Marchand baluns. The planar Marchand baluns work as the transformers of odd mode excitation and a transmission stop circuit for even mode excitation as well as the impedance matching networks. A differential phase shift of 45 was obtained with a low dc bias of 20 V at frequency of 9 GHz, which corresponds to a figure of merit of ∼23/dB. These results represent significant progress toward compact size, low loss, and ferroelectric thin film-based phase shifters at room temperature. © 2012 American Institute of Physics.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.3686615
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1063/1.3686615
dc.description.sourcetitleJournal of Applied Physics
dc.description.volume111
dc.description.issue4
dc.description.page-
dc.description.codenJAPIA
dc.identifier.isiut000300948600113
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