Product/Service

AMF Series - Low-Phase Noise Amplifiers

Source: L3 Harris Technologies, Inc.
amf1
Features:
  • Low residual AM/PM noise from -150 dBc/Hz at 10 kHz
  • Guaranteed performance
  • Supporting test data

Features:
  • Low residual AM/PM noise from -150 dBc/Hz at 10 kHz
  • Guaranteed performance
  • Supporting test data

Applications:

  • Coherent FMCW radars
  • Low PM noise measurement systems

Manufacturers of coherent radar systems require low phase noise amplifiers for their receiver and exciter systems. The phase noise of the amplifier is not correlated with the low noise figure, i.e. the lowest noise figure amplifier does not always have the lowest phase noise. In order to provide the lowest phase noise amplifiers, MITEQ has measured phase noise for distributed, single-ended, and balanced amplifiers to determine the optimum design. We have also measured the amplifiers with ion-implanted FETs and epitaxial FETs to determine the optimum devices.

Phase noise has been further reduced 4 to 5 dB by combining four (4) phase-matched amplifiers in parallel with input and output 4-way power dividers/combiners. The signal remains coherent while the phase noise is random in each amplifier, resulting in a net reduction in the additive phase noise of the overall unit. Typically low phase noise designs achieve -140 dBc/Hz at 1 kHz offset from the carrier, and -150 dBc/Hz at 10 kHz offset from the carrier. This is 10 –15 dB lower than nonoptimized models. Please contact factory with your specific requirements.

For specifications, outline drawings, and more, download the Product Catalog