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Title: A DMTL phase shifter using insulation layer and saw-shaped CPW
Authors: Wu, Q.
Tang, K.
Feng, Z.-R.
Sun, F.-L.
Li, L.-W. 
Keywords: Distributed MEMS transmission line (DMTL)
Insulation layer
Phase shifter
Saw-shaped CPW
Issue Date: 2007
Citation: Wu, Q.,Tang, K.,Feng, Z.-R.,Sun, F.-L.,Li, L.-W. (2007). A DMTL phase shifter using insulation layer and saw-shaped CPW. Asia-Pacific Microwave Conference Proceedings, APMC : -. ScholarBank@NUS Repository.
Abstract: The phase shift features of the RF MEMS phase shifter are described. The approach of adding an insulation layer below the RF MEMS bridge to increase phase shift and improve reliability is proposed, in addition, the saw-shaped CPW is used to decrease the return loss introduced by the insulation layer. By using network theory and CST microwave studio simulation tool, the proposed RF MEMS phase shifter is modeled. Simulation results show that the proposed model has the return loss less than -10dB and the insertion loss more than -2dB in 2GHz bandwidth range. For one RF MEMS switch-type bridge, as high as 22.5 degrees phase shift is realized.
Source Title: Asia-Pacific Microwave Conference Proceedings, APMC
ISBN: 1424407494
DOI: 10.1109/APMC.2007.4554687
Appears in Collections:Staff Publications

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