Metatronic transistor amplifier

Transistor Oscillator and Amplifier Grids

In this paper, we review recent developments in quasi-optical power combining. In particular, we examine planar periodic grids and their use as quasi-optical active components. A variely of grids used for the generation and amplification of electromagnetic radiation have been investigated. Although quasi-optical techniques are applicable to a large variery of solid-state devices, special attent...

Transistor-amplifier units for absorptiometry.

Fully differential cryogenic transistor amplifier

We have constructed a dc-coupled differential amplifier capable of operating in the 4.2 K – 300 K temperature range. The amplifier can be operated at high-bias setting, where it dissipates 5 mW, has noise temperature TN < 0.8 K at 4 k source resistance and >40 MHz bandwidth at 4.2 K bath temperature. The bias setting can be adjusted: at our lowest tested setting the amplifier dissipates <100 W,...

Voltage Amplifier Based on Organic Electrochemical Transistor

Organic electrochemical transistors (OECTs) are receiving a great deal of attention as amplifying transducers for electrophysiology. A key limitation of this type of transistors, however, lies in the fact that their output is a current, while most electrophysiology equipment requires a voltage input. A simple circuit is built and modeled that uses a drain resistor to produce a voltage output. I...

RF Amplifier Design Using HFA3046, HFA3096, HFA3127, HFA3128 Transistor Arrays

Introduction This application note is focused on exploiting the RF design capabilities of HFA3046/3096/3127/3128 transistor arrays. Detailed design procedures, using these transistor arrays, for a matched (800MHz to 2500MHz) high-gain low-noise amplifier and a 10MHz to 600MHz wideband feedback amplifier are described. The HFA3046, HFA3096, HFA3127, HFA3128 transistor arrays are fabricated in a ...