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Antennas for radiated emission testing

Antennas for radiated emission testing

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Antennas for radiation emission measurement are treated separately from antennas for radiated susceptibility testing to show the importance of different antenna parameters in the two cases. With antennas for emission measurements the key parameters are bandwidth, sensitivity, dynamic range and absence of cross or intermodulation products in the case of active antennas with built in amplifiers. Important parameters for antennas used in susceptibility measurements include bandwidth, gain/power requirement, beamwidth/ spot size, power dissipation, size and mass. Such topics arc discussed in the following chapter. This one looks in detail at the types of receiving antennas that are widely used for radiated emission testing. They are discussed in sequence, beginning with the passive monopole which has the least complicated construction.

Chapter Contents:

  • 6.1 Passive Monopoles
  • 6.1.1 Construction
  • 6.1.2 Performance
  • 6.2 Active monopoles
  • 6.2.1 Advantages
  • 6.2.2 Disadvantages
  • 6.3 Tuned dipoles
  • 6.3.1 Introduction
  • 6.3.2 Practical tuned dipoles
  • 6.3.3 Commercial EMC tuned dipoles
  • 6.3.4 Radiated emission testing
  • 6.4 Electrically short dipoles
  • 6.4.1 Special shot calibration dipoles
  • 6.4.2 Roberts dipoles
  • 6.4.3 Small nonresonant dipoles
  • 6.4.4 Microscopic dipole probes
  • 6.5 Biconic dipoles
  • 6.5.1 Introduction
  • 6.5.2 Commercial biconic antennas
  • 6.6 Wideband antennas
  • 6.6.1 Introduction
  • 6.6.2 Log-periodic antenna
  • 6.7 Log-periodic dipole antenna
  • 6.8 Conical log-spiral antenna
  • 6.9 Horn antennas
  • 6.10 Ridged guide horn antennas
  • 6.11 Reflector antennas
  • 6.12 Magnetic field antennas
  • 6.12.1 Introduction
  • 6.12.2 passive loops
  • 6.12.3 Active loops
  • 6.12.4 loop calibration
  • 6.12.5 Magnetic field susceptibility tests
  • 6.13 References

Inspec keywords: antenna testing; antenna radiation patterns; electromagnetic compatibility; amplifiers; monopole antennas

Other keywords: radiated susceptibility testing; susceptibility measurements; radiated emission testing; antennas; amplifiers; radiation emission measurement

Subjects: Single antennas

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