National Physical Laboratory

RF & Microwave

NPL runs one of the world’s most comprehensive capabilities for traceable measurement of basic electromagnetic parameters at RF and Microwave frequencies. This is centred on the frequency range from 1 MHz to 110 GHz, but with many extensions at either end, e.g. up to THz frequencies. The National Standards and measurement capability are maintained specifically to support UK industry, engineers and scientists. Experience gained in their development gives the RF and Microwave metrologists at NPL unique knowledge that can be invaluable when working with industrial collaborators and end-users to help remove their measurement barriers to innovation. This experience is passed on in many ways, e.g. through collaborations, workshops, Electromagnetic Measurement Club activities and consultancies.

Primary Metrology covers RF and Microwave measurement standards in transmission media such as hollow waveguides, coaxial lines, dielectric waveguides and planar lines in high frequency integrated circuits.
At NPL we research methods to demonstrate compliance with exposure limits and relevant legislation.

RF & Microwave case studies

  • UK company reduces potential interference from a GPS device for use on police vehicles operating the police secure communications network.
  • IndexSAR, a UK SME that specialises in RF monitoring equipment, has developed 'Touchsafe', an innovative hand-held instrument connected to a lap-top computer that enables on-site assessment of the potential RF absorption levels.


Please note that the information will not be divulged to third parties, or used without your permission