HF Doubler (LNHD)

LNHD block


The LNHD is a fixed frequency HF doubler based on a public-domain design developed by the National Institute of Standards and Technology (NIST) for superlative phase noise performance. Our unique implementation incorporates an output bandpass filter and specially selected FETs. With a total power consumption of only 30 mA, the LNHD is particularly useful in HF x2 multiplication applications where power is limited.


  • Output Frequency to 30 MHz
  • Multiplication Factor: x2
  • Low Conversion Loss
  • Intrinsic Phase Noise to -178 dBc/Hz
  • Integral Bandpass Filter
  • Low Power Consumption


  • Synthesizer Building Block
  • Communication Systems
  • Radar Systems
  • Electronic Warfare Systems

Typical Specifications

LNHD Specs

Mechanical Drawing

LNHD Mechanical

Ordering Information



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