By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Microwave and Wireless Technologies have been presented. According to news reporting originating from West Lafayette, Indiana, by VerticalNews correspondents, research stated, "This paper presents four continuously variable W-band phase shifters in terms of design, fabrication, and radiofrequency (RF) characterization. They are based on low-loss ridge waveguide resonators tuned by electrostatically actuated highly conductive rigid fingers with measured variable deflection between 0.3 degrees and 8.25 degrees (at a control voltage of 0-27.5 V)."
Our news editors obtained a quote from the research from Purdue University, "A transmission-type phase shifter based on a tunable highly coupled resonator has been manufactured and measured. It shows a maximum figure of merit (FOM) of 19.5 degrees/dB and a transmission phase variation of 70 degrees at 98.4 GHz. The FOM and the transmission phase shift are increased to 55 degrees/dB and 134 degrees, respectively, by the effective coupling of two tunable resonances at the same device with a single tuning element. The FOM can be further improved for a tunable reflective-type phase shifter, consisting of a transmission-type phase shifter in series with a passive resonator and a waveguide short. Such a reflective-type phase shifter has been built and tested. It shows a maximum FOM of 101 degrees/dB at 107.4 GHz."
According to the news editors, the research concluded: "Here, the maximum phase shift varied between 0 degrees and 377 degrees for fingers deflections between 0.3 degrees and 8.25 degrees."
For more information on this research see: Continuously variable W-band phase shifters based on MEMS-actuated conductive fingers. International Journal of Microwave and Wireless Technologies, 2013;5(4):477-489. International Journal of Microwave and Wireless Technologies can be contacted at: Cambridge Univ Press, Edinburgh Bldg, Shaftesbury Rd, CB2 8RU Cambridge, England. (Cambridge University Press - www.cambridge.org; International Journal of Microwave and Wireless Technologies - journals.cambridge.org/action/displayJournal?jid=MRF)
The news editors report that additional information may be obtained by contacting D. Psychogiou, Purdue University, Sch Elect & Comp Engn, Birck Nanotechnol Center, West Lafayette, IN 47907, United States. Additional authors for this research include Y.J. Li, J. Hesselbarth, D. Peroulis, C. Hierold and C. Hafner.
Keywords for this news article include: Indiana, United States, West Lafayette, North and Central America, Microwave and Wireless Technologies
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