Q.1
Which of the following term is not applied to the Yagi-Uda array?
  • a) low impedance
  • b) high gain
  • c) good bandwidth
  • d) high reception of signals
Q.2
An antenna can be matched to a feed line by using an LC network only.
  • a) True
  • b) False
Q.3
An array with one driven element, a reflector, and one or more directors is called ________
  • a) Yagi
  • b) Marconi
  • c) Simple Dipole
  • d) Folded Dipole
Q.4
The energy picked up by a parabolic antenna is concentrated at the ________
  • a) edges
  • b) center
  • c) corners
  • d) focus
Q.5
Antennas are often tested in ________
  • a) an RF reflective chamber
  • b) a vacuum chamber
  • c) an anechoic chamber
  • d) atmosphere
Q.6
Which one of the following consists of non-resonant antennas?
  • a) folded dipole
  • b) simple dipole
  • c) rhombic antenna
  • d) broadside array
Q.7
Which one of the following is very useful as a multiband HF receiving antenna?
  • a) folded dipole
  • b) log periodic
  • c) conical horn
  • d) rectangular horn
Q.8
Which among the following is not a reason for the use of antenna coupler?
  • a) To make the antenna look resistive
  • b) To provide the output amplifier with correct load impedance
  • c) To discriminate against harmonics
  • d) To prevent re-radiation of the local oscillator
Q.9
Why top loading is used with an antenna?
  • a) to increase its effective height
  • b) to increase its beamwidth
  • c) to increase its bandwidth
  • d) to increase its impedance
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