Expansion of dynamic range limiting amplifiers provides greater application support

Pasternack has expanded its offering of broadband limiting amplifiers which are commonly used in electronic warfare, microwave receivers and broadband communications systems. The company’s coaxial broadband limiting amplifiers cover a wide frequency range, from 1GHz to 18GHz, and are used to protect sensitive microwave receivers by “limiting” excessive input power which could potentially create unwanted distortion or even damage the receiver. These RF amplifiers offer a wide input dynamic range between -61dBm to +20dBm, high gain levels of 40dB to 80dB typical while exhibiting excellent gain flatness performance of ±1 dB depending on the specific model. Additionally, these limiting amplifiers accept a wide range of input power levels while responding with a limited range of output power, between 15 and 19 dBm, with a saturated power output deviation of ±0.5dB over the frequency range, independent of the input. The company’s wideband limiting amplifiers are housed in hermetically-sealed packages and are designed to withstand harsh environments with operating temperatures ranging from -30C to +70C. Over-voltage protection is installed externally for easy repair and the amplifiers are fully matched internally for 50ohm input and output, which eliminates the customer’s need for additional sensitive, external RF tuning components. “By expanding our offering of broadband limiting amplifiers we can offer our customers even more application support and flexibility,” said Tim Galla, Active Equipment product manager. “Furthermore, these limiting amplifiers are all in-stock and ready to ship to address the urgent needs of our customers,” continued Galla.