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|dc.title||A novel microwave ferroelectric varactor with hybrid coplanar and parallel plate structure|
|dc.identifier.citation||Wang, P., Ong, C.K. (2009). A novel microwave ferroelectric varactor with hybrid coplanar and parallel plate structure. Journal of Physics D: Applied Physics 42 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/42/19/195107|
|dc.description.abstract||A novel microwave ferroelectric varactor with hybrid coplanar and parallel plate structure is presented. The tunability of conventional coplanar varactors is demonstrated to be highly improved by applying a dc bias through high resistance parallel plate electrodes. The requirements for stringent lithography were much less compared with the conventional parallel plate structure and easily provided a suitable capacitance for circuit impedance matching. The quality factor (Q factor) of the hybrid varactor increased as the frequency increased, which suggests that the proposed new hybrid structure is a potential alternative method in the development of high frequency microwave ferroelectric tunable devices. The method of applying a dc bias using high resistance electrodes may provide a simplified procedure in complex agile microwave devices. © 2009 IOP Publishing Ltd.|
|dc.description.sourcetitle||Journal of Physics D: Applied Physics|
|Appears in Collections:||Staff Publications|
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