New ultra-broadband and millimetre-wave low-noise amplifiers

A new line of ultra-broadband and millimetre-wave low-noise amplifiers are now available from Pasternack stock. The high-frequency LNAs offer very low noise figure levels, typically between 2.5dB and 3dB across the entire band, making them ideal for use in applications such as electronic warfare, instrumentation, fibre optic communication systems, defence / secure communications, radar, SATCOM, point-to-point radio links, telecom and R&D. The offering includes 17 models covering multi-octave bandwidths with flat gain response and feature highly efficient GaAs PHEMT semiconductor technology. 50 ohm hybrid MIC circuits are enclosed in environmentally sealed metal packages with nickel or gold plating. These low noise amplifiers come with either stainless steel SMA or 2.92mm connectors and some packages are hermetically sealed with field replaceable connectors, making these units very durable and able to withstand harsh environmental conditions. The 2.92mm connectorized models operate to 40GHz. The new ultra-broadband and millimeter wave LNAs have IP3 levels as high as +42dBm, low VSWR and are unconditionally stable. DC voltage supply ranges from +12VDC to +15VDC while bias current ranges from 80mA to 1300mA. The voltage supply is internally regulated. The broadband low noise amplifiers from Pasternack contain internal circuits including DC blocking capacitors at the RF input/output ports and are 'guaranteed' to operate over a wide temperature swing from -20C to +70C, says the company. “We are continually expanding our lines of off-the-shelf RF amplifiers to meet the needs of our customers and current market trends,” explains Tim Galla, active RF component product manager, Pasternack. “This selection of ultra-broadband, low noise amplifiers offers designers many options for highly linear gain and output power levels that cover a wide variety of applications for RF, microwave and millimetre wave frequency bands.”