Search Results - "Forehand, D.I."

Temperature variation of actuation voltage in capacitive MEMS switches by Goldsmith, C.L., Forehand, D.I.

“…A simple theoretical model for temperature variation of actuation voltage for fixed-fixed beam switches is developed and applied to model capacitive radio…”
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Robustness of RF MEMS Capacitive Switches With Molybdenum Membranes by Palego, C., Jie Deng, Zhen Peng, Halder, S., Hwang, J.C.M., Forehand, D.I., Scarbrough, D., Goldsmith, C.L., Johnston, I., Sampath, S.K., Datta, A.

“…This paper compares the characteristics of an RF microelectromechanical systems (MEMS) capacitive switch with a molybdenum membrane versus that of a switch…”
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Impact of Humidity on Dielectric Charging in RF MEMS Capacitive Switches by Zhen Peng, Palego, C., Hwang, J.C.M., Forehand, D.I., Goldsmith, C.L., Moody, C., Malczewski, A., Pillans, B.W., Daigler, R., Papapolymerou, J.

“…A novel technique is used to distinguish the charging of the surface from that of the bulk of the dielectrics of different types of RF MEMS capacitive switches…”
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Superposition Model for Dielectric Charging of RF MEMS Capacitive Switches Under Bipolar Control-Voltage Waveforms by Zhen Peng, Xiaobin Yuan, Hwang, J.C.M., Forehand, D.I., Goldsmith, C.L.

“…Bipolar control-voltage waveforms, under which the control voltage alternates between positive and negative after each cycle, have been proposed to mitigate…”
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Compact RF Model for Transient Characteristics of MEMS Capacitive Switches by Halder, S., Palego, C., Zhen Peng, Hwang, J.C.M., Forehand, D.I., Goldsmith, C.L.

“…A compact model is proposed to facilitate the design and simulation of the control waveform of RF microelectromechanical systems (MEMS) capacitive switches…”
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High-Cycle Life Testing of RF MEMS Switches by Goldsmith, C.L., Forehand, D.I., Peng, Z., Hwang, J.C.M., Ebel, I.L.

“…RF MEMS capacitive switches capable of order-of-magnitude impedance changes have demonstrated operating lifetimes exceeding 100 billion switching cycles…”
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Dielectric Charging of RF MEMS Capacitive Switches under Bipolar Control-Voltage Waveforms by Zhen Peng, Xiaobin Yuan, Hwang, J.C.M., Forehand, D.I., Goldsmith, C.L.

“…Bipolar control-voltage waveforms have been proposed to mitigate dielectric charging in RF MEMS capacitive switches. In this work, for the first time,…”
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Effect of packaging on dielectric charging in RF MEMS capacitive switches by Zhen Peng, Palego, C., Hwang, J.C.M., Moody, C., Malczewski, A., Pillans, B.W., Forehand, D.I., Goldsmith, C.L.

“…A novel technique was used to evaluate the effectiveness of packaging in maintaining a dry ambient atmosphere for electrostatically actuated RF MEMS capacitive…”
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Compact Ka-band phase shifters using MEMS capacitive switches by Palego, C., Zhen Peng, Hwang, J., Scarbrough, D., Forehand, D.I., Goldsmith, C.L.

“…This paper presents the design of a Ka-band phase shifter comprising a slow-wave structure that tightly wraps around three closely spaced MEMS capacitive…”
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Pulse RF operation of MEMS capacitive switches by Palego, C., Jie Deng, Halder, S., Zhen Peng, Hwang, J., Forehand, D.I., Goldsmith, C.L.

“…Shifts in the pull-in voltage of electrostatically actuated MEMS capacitive switches were characterized under pulse RF excitation, which allowed the electrical…”
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