Question 1 : Which of the following term is not applied to the Yagi-Uda array?
1. low impedance
2. high gain
3. good bandwidth
4. high reception of signals
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Question 2 : Which among the following is not a reason for the use of antenna coupler?
1. To make the antenna look resistive
2. To provide the output amplifier with correct load impedance
3. To discriminate against harmonics
4. To prevent re-radiation of the local oscillator
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Question 3 : Which one of the following is very useful as a multiband HF receiving antenna?
1. folded dipole
2. log periodic
3. conical horn
4. rectangular horn
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Question 4 : Which one of the following consists of non-resonant antennas?
1. folded dipole
2. simple dipole
3. rhombic antenna
4. broadside array
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Question 5 : Antennas are often tested in ________
1. an RF reflective chamber
2. a vacuum chamber
3. an anechoic chamber
4. atmosphere
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Question 6 : The energy picked up by a parabolic antenna is concentrated at the ________
1. edges
2. center
3. corners
4. focus
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Question 7 : An array with one driven element, a reflector, and one or more directors is called ________
1. Yagi
2. Marconi
3. Simple Dipole
4. Folded Dipole
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Question 8 : An antenna can be matched to a feed line by using an LC network only.
1. True
2. False
3.
4.
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Question 9 : What is the typical bandwidth of a 2-wire telephone line?
1. 20 Hz to 6 KHz
2. 300 Hz to 3.4 KHz
3. 20 Hz to 20 KHz
4. 200 Hz to 6.5 KHz
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Question 10 : Arrays in antenna can be __________
1. phased
2. driven
3. parasitic
4. phased, driven or parasitic
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