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WorksheetsIntroduction to Transmission Lines
Total questions: 20
Worksheet time: 8mins
Transmission lines transmits digital signals only between two points occurs over a pair of parallel conductors.
True
False
Electrical power propagates along transmission lines in the form of TEM waves.
True
False
Transmission line analysis is used when?
The frequency of operation is low
The length of the transmission line is long
None of the above
In general, a line is considered as a transmission line if its length exceeds how many wavelength?
1/8
1/16
1/4
1/2
Reflection of signal on the line must be avoided.
True
False
Sometimes
Which is not an Application of Transmission Lines?
Pulse generator
tuned circuits
Impedance matching
Phase delay
Exact value of speed of light?
299 792 459 m/s
189,000 miles per second
299 792 458 m/s
299 792 358 m/s
One example of unbalanced line?
twin-lead
coaxial cable
BALUNS
SHIELDED CABLE PAIR
Which is not a balanced line?
OPEN-WIRE TRANSMISSION LINE
TWIN LEAD TRANSMISSION LINE
CONCENTRIC TRANSMISSION LINE
SHIELDED CABLE PAIR
It is characterized by high radiation losses and is susceptible to noise.
open-wire line
Twin lead
Twisted pair
Coaxial lines
Commonly used insulators are Teflon and Polyethylene.
open-wire line
Twin lead
Twisted pair
Coaxial lines
It is not suitbale for high frequencies because of high loss due to insulation
open wire
twin lead
twisted pair
coaxial line
It provides performance to allow data at 100 Mbps and slightly more
CAT 8
CAT 7
CAT 6
CAT 5
It protects the twisted pairs of wires inside the Ethernet cable, helps prevent crosstalk and noise interference.
CAT8
CAT7
CAT6
CAT5
It can reach up to 100Gbps at a range of 15 meters making it one of the most capable categories of Ethernet cables.
CAT8
CAT7
CAT6
CAT5
This standard promises a maximum frequency of 2,000MHz and speeds of up to 40Gbps at 30 meters.
CAT8
CAT7
CAT6
CAT5
This has a maximum bandwidth of 250MHz.
CAT8
CAT7
CAT6
CAT5
It consists of parallel conductors separated and surrounded by a solid dielectric.
CAT
Twin lead
Shielded Pair Cable
Coaxial Line
Rigid air filled coaxial has ability to minimize the radiation losses.
True
False
Rigid-air filled is less expensive, easier to construct and install.
True
False
