This paper discusses issues relating to the reliability and methods for employing high-cycle life testing in capacitive RF MEMS switches. In order to investigate dielectric charging, transient current spectroscopy is used to characterize and model the ingress and egress of charges within the switch insulating layer providing an efficient, powerful tool to investigate various insulating material...

This paper describes a MEMS RF switch designed and developed specifically for space communication systems, with a novel geometry and operating mode that overcome the drawbacks of previous devices. To avoid the need for high voltage control, the switch uses electro-thermal rather than electrostatic operation; although this requires higher power consumption during switching, a latching configurat...

RF MEMS capacitive switches show great potential for use in wireless communication device. However, their widespread insertion in commercial products requires further improvements in their longterm reliability. Dielectric charging is one of the factors that impact switch reliability. Dielectric charging is understood to mean the accumulation of electric charge in the insulating dielectric layer...

 This paper analyses the mechanical behaviour of various suspensions of electrostatically actuated RF MEMS switches. A family of capacitive switches is described, with suspensions varying step by step from cantilevers to meander shaped double clamped beams. The result is a capacitive shunt switch with a designed actuation voltage of 4.5 V, and 20dB isolation and 0.04 dB insertion loss at a fre...

The ability of silicon micromachining to produce small, precision, movable parts provides an opportunity for MEMS component use in optical communications networks [1,2]. To address this potential market, Analog Devices has developed the Optical iMEMS process for fabricating MEMS optical components with integrated, onchip electronics. While this process could be used to make a variety of optics ...

ABSTRACT- In order to produce transgenic rice lines lacking selectable marker gene, biolistic co-transformation technique using gold nanoparticles was adopted. In the first step, the efficiency of different sizes of gold particles was evaluated. The results showed that the efficiency of the nanoparticles in the transformation was comparable to that of the micro particles. Subsequently, two sepa...

We report on characterization of an optical fiber-based multi-parameter sensor concept combining localized surface plasmon resonance (LSPR) signal and interferometric sensing using a double-clad optical fiber. The sensor consists of a micro-Fabry-Perot in the form of a hemispherical stimuli-responsive hydrogel with immobilized gold nanorods on the facet of a cleaved double-clad optical fiber. T...

This paper presents an approach to evaluate capacitance developed by perforated membrane of RF MEMS switch with high accuracy. An analytical model is for both upstate and downstate including parasitic fringing field in parallel plate model. The proposed includes the ligament efficiency term directly formula which reduce efforts calculate it individually various perforation sizes. analysis has b...