Frequently Asked Questions On Antenna Theory With Answers -14.



This page contains basic questions and short notes on some of the keywords on antenna theory:


66) What are Electrically large loop antennas?

Electrically Large loop antennas is one in which the overall length of the loop approaches the wavelength.


67) List out the uses of loop antenna?

Various uses of loop antenna are:

  • ™ It is used as receiving antenna in portable radio and pagers.
  • ™ It is used as probes for field measurements and as directional antennas for radio wave navigation.
  • ™ It is used to estimate the direction of radio wave propagation.


68) What are the parameters to be considered for the design of an helical antenna?

The parameters to be considered for the design of an helical antenna are:

  • Bandwidth.
  • Gain.
  • Impedance.
  • Axial Ratio.


69) What are the types of radiation modes of operation for an helical antenna?

The two types of radiation modes of operation possible for an helical antenna are:
  • Normal mode of operation.
  • Axial mode of operation.


70) Which antenna will produce circularly polarized waves?

Helical antenna radiates circularly polarized wave




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