Filter Amplifier (LNFA)

LNFA block


The LNFA is a broadband amplifier that is characterized to a specific customer specified frequency within the operating band and includes an integrated bandpass filter. The LNFA’s integral 2-section BPF attenuates unwanted mixer products, harmonics and other undesired signals at the output before amplification. A 3 dB bandwidth, typically 5 – 10% of the center frequency, is standard.  A wide selection of common amplifiers and input/output attenuators provide flexibility in configuring gain and input/output signal levels (see amplifier selection table for options). Residual phase noise is verified at the design frequency when suitable low noise sources are available. Please consult our technical staff for assistance in configuring an amplifier to suit your input and output requirements.


  • Frequencies to 1 GHz
  • Integral Bandpass Filter
  • Characterized Phase Noise
  • Integral Attenuators


  • Low Phase Noise Amplification
  • Broadband Amplification

Typical Specifications

LNFA Specs

Mechanical Drawing

LNFA mechanical

Ordering Information

lnfa standard oi** These part numbers are a few common configurations. Use the Ordering Information guide and the 
Amplifier Selection Table for additional amplifier options or consult the factory for assistance.

Standard Amplifier Options

standard amplifying options*** See the complete  Amplifier Selection Table for additional amplifier options.

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