Amplifiers Overview

Teledyne Lincoln Microwave design and manufacture RF amplifiers utilising the latest semiconductor technology. Our portfolio includes low noise amplifiers (LNA’s), power amplifiers and pre-amplifiers. These can incorporate linearization, filtering, phase and amplitude control functionality.

Gallium Nitride (GaN) High Electron Mobility Transistor (HEMT) semiconductors are a viable alternative to vacuum tube technologies for many power amplifier applications. Teledyne Lincoln Microwave’s low loss combining techniques now make it possible to meet the power, bandwidth and efficiency requirements of radar systems with solid-state power amplifiers (SSPA). Compared to Gallium Arsenide (GaAs) and other solid-state semiconductor materials, GaN provides an order-of magnitude increase in transistor power density and has brought about a step change in achievable Size, Weight and Power (SWaP) performance.

Low-noise amplifiers (LNAs) increase signal power coming from the antenna while adding as little noise and distortion as possible. Gallium Arsenide (GaAs) Field Effect Transistors (FET) devices are typically used in low-noise amplifiers in the microwave frequency region because silicon transistors can’t provide the required gain and noise performance. The FET devices are typically very sensitive to power and best protected by a limiter/receiver protector device. Teledyne Lincoln Microwave design LNA devices to meet demanding custom performance specifications.

For most applications a flat gain response across the operating frequency band is a highly desirable amplifier property. However, the gain response of practical amplifiers fluctuate with changes in frequency and temperature. Introducing a Teledyne Lincoln Microwave Equalizer Amplifier at the input of a power amplifier device (TWT or SSPA) can flatten the gain response of wide-band microwave transmitter systems.

With over 70 years’ experience of component and sub-system design for radar applications, Lincoln Microwave is uniquely positioned to provide a complete integrated RF sub-systems, incorporating our world-class amplifiers, to meet your specific needs.


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