The reconfigurable micro strip antenna has the ability to vary its band width, operating frequency and radiation pattern. Radiation pattern of reconfigurable antenna has the to avoid the noise sources , increasing the gain and saving power by directing the ability to switch the pattern from one direction to another at common impedance , bandwidth and operating frequency . This means the pattern...

We present a novel, free-standing low-temperature GaAs (LT-GaAs) photoconductive switch and demonstrate its femtosecond performance. A 1-microm-thick layer of a single-crystal LT-GaAs was patterned into 5-10-microm-wide and 15-30-microm-long bars, separated from their GaAs substrate and, subsequently, placed across gold coplanar transmission lines deposited on a Si substrate, forming a photocon...

This work presents the micro-mirror switch array for use on free-space optical interconnect platform which integrated with a digital 1×8 de-multiplexer on-chip control circuit together. The device employs electrostatic actuation for light beam directions control. The diameter of each mirror is about 50 μm and the overall chip size is around 1.8 by 1.8 mm. The professional simulation software wa...

A major question in biomimetic tissue engineering is how much of the structure/function of native vasculature needs to be reproduced for effective tissue perfusion. O2 supplied to cells in 3D scaffolds in vitro is initially dependent upon diffusion through the scaffold and cell consumption. Low O2 (3%) enhances specific cell behaviours, but where O2 is critically low (pathological hypoxia) cell...

We report on printed flexible micro-hotplates operating at high temperature at lower power consμmption than ever reported using aerosol jet printing of fine metallic conductor features. Efficient heating (i.e., 40 mW at 325 °C) was produced by reducing the effective heating area and substrates thickness. Gold (Au) nanoparticles solution was used for printing micro-hotplates of two different siz...