High Dynamic Range Feedforward Amplifiers

High Dynamic Range Feedforward Amplifiers are used as HF antenna preamplifiers and antenna multicoupler amplifiers. Covering a frequency range of 1.5 to 32 MHz (optionally 1.5 to 88 MHz), these 2.4" x 3" x 7" amplifiers replace 75 to 100 W conventional technology amplifiers. High intercept points (+118 dBm OIP2 typ., +62 dBm OIP3 typ.) are obtained at a low DC power consumption of 18 W using feedforward amplifier technology. Gains of 11 to 23 dB are available at a noise figure of 5 dB typ. This is a mature design with over 3,000 units fielded.

Capabilities of our High Dynamic Range Feedforward Amplifiers

  • Operating frequency: 1.5 to 32 MHz (optionally 1.5 to 88 MHz)
  • High intercept points: +118 dBm OIP2 typ., +62 dBm OIP3 typ.
  • Linear phase response
  • Gains: 11 to 23 dB
  • Noise figure: 4.5 dB typ.
  • Low power dissipation of 18 W

Features of our High Dynamic Range Feedforward Amplifiers

  • HF antenna preamplifier (no pre-selection required)
  • Replaces 75 to 100 W conventional amplifiers with low DC power consumption (only 18 W required for feedforward technique)
  • Used in multicoupler and high dynamic range receiver applications
  • Ruggedized/outdoor versions available
  • High MTBF
  • Lightning protection
  • 50 ohms system impedance