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WorksheetsBlock 4 - 1F - Antenna
Total questions: 13
Worksheet time: 7mins
High frequencies require longer antennas
True
False
Antennas radiate or intercept electrostatic wave energy
True
False
The size and shape of an antenna is determined by
Frequency, power, and direction
Frequency, voltage, and direction
Frequency, gnomes, and direction
Frequency, distance, and direction
The signal energy sent into space is sent from the...
Reciprocating antenna
Transmitting antenna
Receiving antenna
Efficient antenna
What is an example of antenna reciprocity
Making and receiving phone calls
Turning on a blender
Typing on a keyboard
Lights flashing
Which of these describe antenna gain?
An indication on how much power RF signal requires for an antenna to explade or reciprocate in a specific direction
An indication on how much power RF signal requires for an antenna to transmit in a specific direction.
An indication on how much power RF signal requires for an antenna to recieve in a specific direction.
An indication on how much power RF signal requires for an antenna to transmit OR recieve in a specific direction.
To compare antennas power supplied to the power radiated away, we use...
Antenna efficiency formula
I can't write the equation but this answer is the equation
Polarization formula
Radiation patterms
Basic antenna systems consist of
Coupling device, feeder, antenna
Coupling device, vacuum, antenna
Feeder, floater, antenna
Feeder, amplifier, spacer disks
What does the coupling device connect to?
(a)
A moving eletric field creates a...
Magnetic field (H)
Electric field (E)
A job in your field (C)
A moving magnetic field creates a
Magnetic field (H)
Electric field (E)
A job in your field (C)
How many radiation patterns are there?
3
4
6
2
9
Polarization is
The direction of e field of a wave front with respect to the earth's surface
The direction of h field of a wave front with respect to the earth's surface
The direction of current of a wave front with respect to the earth's surface
The direction of inductance of a wave front with respect to the earth's surfac
