NDLI: Inductively-Tuned K- Band Distributed MEMS Phase Shifter

Content Provider	IEEE Xplore Digital Library
Author	Afrang, S. Yeop Majlis, B.
Copyright Year	2006
Description	Author affiliation: Univ. Kebangsaan Malaysia, Bangi (Afrang, S.; Yeop Majlis, B.)
Abstract	This paper presents a new method in the MEMS phase shifters using inductors and inline MEMS bridges. There is LC serial and parallel configuration in the un-actuated and actuated position respectively. The resonance frequencies due to these configurations causes an increasing in impedance change and then increasing in the phase shift in the K- band frequency range. For a unit cell at 20 GHz the un-actuated simulation results in a reflection coefficient -26.5 dB, an insertion loss of -0.185 dB and the phase constant of -23.5 degree. The actuated simulation results in a reflection coefficient -13.5 dB, an insertion loss of -0.18 dB and the phase constant of -6 degree. The spacing in the proposed structures is S=250e-6. This spacing is smaller than similar phase shifters using only capacitors at 20 GHz. Then the governing equations for the impedance, Bragg frequency and the periodic spacing between the bridges are derived.
Starting Page	208
Ending Page	212
File Size	2380183
Page Count	5
File Format	PDF
ISBN	0780397304
DOI	10.1109/SMELEC.2006.381049
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-29
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Micromechanical devices Phase shifters Bridge circuits Impedance Reflection Insertion loss Inductors Resonance Resonant frequency Capacitors
Content Type	Text
Resource Type	Article

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