Search Results - "McGruer, N.E."

A dynamic model, including contact bounce, of an electrostatically actuated microswitch by McCarthy, B., Adams, G.G., McGruer, N.E., Potter, D.

“…Microelectromechanical devices are increasingly being integrated into electronic circuitry. One of these types of devices is the microswitch, which acts much…”
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Study of contacts in an electrostatically actuated microswitch by Majumder, Sumit, McGruer, N.E., Adams, George G., Zavracky, P.M., Morrison, Richard H., Krim, Jacqueline

“…Surface micromachined, electrostatically actuated microswitches have been developed at Northeastern University. Microswitches with gold contacts typically have…”
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Micromechanical switches fabricated using nickel surface micromachining by Zavracky, P.M., Majumder, S., McGruer, N.E.

“…Micromechanical switches have been fabricated in electroplated nickel using a four-level surface micromachining process. The simplest devices are configured…”
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Integrated self-biased hexaferrite microstrip circulators for millimeter-wavelength applications by Oliver, S.A., Shi, P., McGruer, N.E., Vittoria, C., Hu, W., How, H., McKnight, S.W., Zavracky, P.M.

“…Planar microstrip Y-junction circulators have been fabricated from metallized 130-/spl mu/m-thick self-biased strontium hexaferrite ceramic die, and then…”
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Determination of intermodulation distortion in a contact-type MEMS microswitch by Johnson, J., Adams, G.G., McGruer, N.E.

“…Finite-element simulations have been used to predict intermodulation distortion in a gold-on-gold contact-type microelectromechanical systems microswitch. The…”
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Theory and experiment of thin-film junction circulator by How, H., Oliver, S.A., McKnight, S.W., Zavracky, P.M., McGruer, N.E., Vittoria, C., Schmidt, R.

“…We have calculated the S-parameters and losses in ferrite-film-junction circulators using a new effective-field theory assuming TEM-like propagation…”
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Application of single-crystal scandium substituted barium hexaferrite for monolithic millimeter-wavelength circulators by Shi, P., How, H., Zuo, X., Oliver, S.A., McGruer, N.E., Vittoria, C.

“…Single-crystal scandium-substituted barium hexaferrite crystals have been characterized and used in the fabrication of miniature monolithic circulators on…”
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Mechanical, Thermal, and Material Influences on Ohmic-Contact-Type MEMS Switch Operation by McGruer, N.E., Adams, G.G., Chen, L., Guo, Z.J., Du, Y.

“…Microswitch performance and reliability are affected by the coupled influences of actuator properties, material and process properties, and device thermal…”
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Emission characteristics of gated silicon wedges by Barry, J.D., McGruer, N.E., Warner, K., Bintz, W.J., Nagras, A.

“…Gated field emission wedges of varying lengths have been fabricated and tested. These wedges emit at 180-200 V from multiple emission sites that are…”
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Determination of intermodulation distortion in a MEMS microswitch by Johnson, J., Adams, G.G., McGruer, N.E.

“…This paper presents a method for predicting the size of intermodulation products due to contact heating in a contact type MEMS microswitch. The primary origin…”
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Influence of nonuniform magnetic field on a ferrite junction circulator by How, H., Oliver, S.A., McKnight, S.W., Zavracky, P.M., McGruer, N.E., Vittoria, C., Schmidt, R.

“…We have analytically formulated the problem that a ferrite circulator junction is biased by a nonuniform magnetic field. Interport impedances of the junction…”
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Plasma immersion ion implantation doping using a microwave multipolar bucket plasma by Qin, S., McGruer, N.E., Chan, C., Warner, K.

“…Using plasma immersion ion implantation, silicon has been doped with boron in a high-voltage pulsed microwave multipolar bucket plasma system. Diborane gas…”
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Oxidation-sharpened gated field emitter array process by McGruer, N.E., Warner, K., Singhal, P., Gu, J.J., Chan, C.

“…Structural and electrical characteristics of silicon field emitter arrays are reported. The authors present a process using anisotropic etching of silicon, and…”
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MMW monolithic Y-junction circulator on single-crystal Sc-doped Ba-hexaferrite by Ping Shi, Hoton How, Xu Zuo, Oliver, S.A., McGruer, N.E., Vittoria, C.

“…A monolithic circulator junction has been fabricated on a single-crystal Sc-doped Ba-hexaferrite film transferred onto a silicon substrate. Operation of the…”
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Theoretical modeling of microstrip thin-film circulators by How, H., Oliver, S.A., McKnight, S.W., Zavracky, P.M., McGruer, N.E., Vittoria, C.

“…We have calculated the S-parameters and losses in ferrite film junction circulators using a new effective-field theory assuming TEM-like propagation. At X-band…”
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200 nm gated field emitters by Huang, Z., McGruer, N.E., Warner, K.

“…The fabrication and electrical characteristics of 200-nm chromium-gated silicon field emitters are reported. These gated emitters are the smallest yet…”
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Modeling and Measurement of the Dynamic Performance of an OHMIC Contact-Type RF MEMS Switch by Guo, Z.J., McGruer, N.E., Adams, G.G.

“…A dynamic model has been developed to investigate the transient mechanical response of an ohmic contact-type RF MEMS switch. The model combines the built-in…”
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The response of a microwave multipolar bucket plasma to a high voltage pulse by Qin, S., Chan, C., McGruer, N.E., Browning, J., Warner, K.

“…A collisional model that describes the response of a microwave multipolar bucket plasma to a high voltage pulse is developed for plasma source ion implantation…”
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Experimental observations of gated field emitter failures by Browning, J., McGruer, N.E., Bintz, W.J., Gilmore, M.

“…Intrinsic failure events in gated field emitters have been studied. The gate-emitter voltage, typically 140 V during operation, drops to 10-70 V at the onset…”
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Adhesion and contact resistance in an electrostatic MEMS microswitch by Majumder, S., McGruer, N.E., Adams, G.G.

“…A multi-asperity model of the contact resistance in a MEMS microswitch has been developed which includes the effects of elastic and plastic deformation,…”
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