What does bandwidth refer to in an antenna?
A
Physical width of the antenna B
Power consumption C
Frequency range over which the antenna works effectively D
Antenna's radiation angle
Analysis & Theory
Bandwidth is the range of frequencies over which the antenna maintains acceptable performance.
How is bandwidth calculated?
A
f_high × f_low B
f_high + f_low C
f_high - f_low D
f_high ÷ f_low
Analysis & Theory
Bandwidth is the difference between upper and lower operating frequency limits.
What is the unit of bandwidth?
A
dB B
Ohms C
Hertz (Hz) D
Volts
Analysis & Theory
Bandwidth is measured in Hertz (Hz), which represents frequency range.
Which of the following antennas is considered wideband?
A
Dipole B
Patch antenna C
Yagi-Uda D
Log-periodic
Analysis & Theory
Log-periodic antennas can operate over a wide range of frequencies and are classified as wideband.
Why is bandwidth important in communication systems?
A
It affects the speed of light B
It determines the antenna's color C
It defines how much data can be transmitted D
It limits the number of antennas used
Analysis & Theory
Wider bandwidth allows more data to be transmitted and improves communication performance.
What happens if an antenna is used outside its bandwidth range?
A
It radiates more efficiently B
It gains more power C
It performs poorly or becomes mismatched D
It increases the beam width
Analysis & Theory
Using an antenna outside its bandwidth causes mismatch and poor performance.