Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3140603
Title: Two paralleled Ba0.25 Sr0.75 TiO3 ferroelectric varactors series connected coplanar waveguide microwave phase shifter
Authors: Sheng, S.
Wang, P. 
Chen, X.
Zhang, X.-Y. 
Ong, C.K. 
Issue Date: 2009
Citation: Sheng, S., Wang, P., Chen, X., Zhang, X.-Y., Ong, C.K. (2009). Two paralleled Ba0.25 Sr0.75 TiO3 ferroelectric varactors series connected coplanar waveguide microwave phase shifter. Journal of Applied Physics 105 (11) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3140603
Abstract: A distributed phase shifter of coplanar waveguide (CPW) using ferroelectric (Ba0.25 Sr0.75 TiO3) film varactors with parallel-plate electrodes is presented. In order to satisfy the requirement of small dimension of the parallel-plate varactor for the design of phase shifter and impedance match of the circuit, two parallel-plate varactors of 8×10 μ m2 are connected in series. The fabricated CPW phase shifter exhibited low insertion loss of 2.3 dB and large differential phase shift of 170° at 7 GHz with a dc bias voltage of 25 V. © 2009 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/117209
ISSN: 00218979
DOI: 10.1063/1.3140603
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