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Non-Ionizing Radiation Measurements for Trajectography Radars.

J Marcos Leal Barbosa Filho1, Millena M de M Campos1, Daniel L Flor1

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Summary
This summary is machine-generated.

This study assessed Non-Ionizing Radiation (NIR) from a C-band trajectography radar. While occupational limits were met, general public exposure limits were exceeded near the antenna, indicating a need for safety measures.

Keywords:
non-ionizing radiation (NIR)power densityradartrajectography

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Area of Science:

  • Electromagnetics and Radio Frequency Engineering
  • Radiation Safety and Health Physics
  • Radar Systems and Technology

Background:

  • Trajectography radars utilize high-gain, narrow-beam antennas emitting high-power signals.
  • Assessing Non-Ionizing Radiation (NIR) exposure from such systems is crucial for safety.
  • Standard measurement methods may not fully capture localized power density from directional antennas.

Purpose of the Study:

  • To conduct a Non-Ionizing Radiation (NIR) measurement campaign for a C-band trajectography radar.
  • To propose and validate a specific measurement method using a directional antenna.
  • To assess compliance with international and national exposure limit levels.

Main Methods:

  • A novel measurement approach using bench equipment and a directional receiving antenna was employed.
  • Power density measurements were taken around a C-band trajectography radar.
  • Measured levels were compared against ICNIRP and Anatel occupational and general public exposure limits.

Main Results:

  • The studied radar respected occupational public exposure limits in all measured locations.
  • Power density levels exceeded the general public exposure limit at a specific point near the radar antenna.
  • The findings highlight the effectiveness of the directional antenna measurement method.

Conclusions:

  • The C-band trajectography radar demonstrates safe operation concerning occupational exposure.
  • Preventive measures are necessary to mitigate risks associated with exceeding general public exposure limits near the antenna.
  • The proposed measurement methodology provides valuable insights for radar system safety assessments.