Kevin W. Kobayashi
 Write for Microwaves & RF
2 results found for Kevin W. Kobayashi, displaying items 1 - 2

July 2006   [Components]
Topology And Technology Drive E-PHEMT Amplifiers
Wideband Darlington amplifiers-offer versatile gain for a variety of wireless and wire-line applications, including in base stations, fiber-optic transceivers, cable-television (CATV) systems, and measurement systems. A Darlington feedback amplifier features multi-decade coverage, can be realizedin a small size, and is simple to use with few additional external components. What follows is a report on a Darlington amplifier that makes use an innovative bias topology ...

January 2006   [Components]
Darlington Gain Blocks Eliminate Bias Resistor
Wideband Darlington RF gain blocks are commonly used in wireless and wire-line applications. Their strong broadband linearity makes them suitable for base-station predrivers, repeater-pole transceivers, fiber-optic transceivers, cable-television (CATV), and instrumentation systems. Unfortunately, conventional Darlington gain blocks need an external-dropping resistor to set and stabilize the bias current. To ensure good temperature stability, an overhead voltage of about 2 to 3 V is applied....