Introduction to Transmission Lines Flashcards
is defined as the path of carrying alternating electrical energy from source
to load.
transmission line
5 types of transmission mediums:
a. PARALLEL-LINE
b. TWISTED PAIR
c. SHIELDED PAIR
d. COAXIAL LINE
e. WAVEGUIDES
This line consists of two wires that are generally spaced from 2 to 6 inches apart by
insulating spacers.
Two-Wire Open Line
This type of transmission line is commonly used to connect a television receiving antenna to
a home television set.
Two-wire Ribbon (Twin Lead)
2 types of parallel lines
Two-Wire Open Line
Two-wire Ribbon (Twin Lead)
The line consists of two insulated wires twisted together to form a flexible line without
the use of spacers.
TWISTED PAIR
It is not used for transmitting high frequency because of the high dielectric losses that
occur in the rubber insulation.
TWISTED PAIR
100 ohm copper cable that consists of 2 to 1800 unshielded twisted
pairs surrounded by an outer jacket
Unshielded Twisted Pair(UTP)
Different Categories of UTP cable
CAT 1
CAT2
CAT 3
CAT 4
CAT 5
CAT 5e
CAT 6
CAT 6a
CAT 7
are usually used for telephone wiring. It transfers up to 1MBPS of data
CAT 1
are the second-lowest grade UTP cables used for supporting digital voice and data
communication. It transfers up to 4 MBPS of data
CAT2
Cables are third-grade unshielded twisted pair cables used for Token Ring and 10BASE-T
Ethernet applications. It transfers up to 10 MBPS of data.
CAT 3
Cables have four pairs of UTP copper cables used for Token ring networks. It transfers up to
16 MBPS of data.
CAT 4
cables are used in structured cabling for Ethernet, Token ring, and Fast Ethernet connections.
It transfers up to 100 MBPS data.
CAT 5
cables are very popular and used in Ethernet, Gigabit Ethernet, and Fast Ethernet
connections. It transfers up to 1 GBPS data.
CAT 5e
cables are high-grade UTP cables used for Gigabit Ethernet and 10 Ethernet (55m)
connections. It transfers up to 10 GBPS data.
Cat 6
cables are also used for Gigabit Ethernet and 10 Ethernet (55m). It transfers up to 10 GBPS
data.
CAT 6a
cables are top graded UTP cables used for Gigabit Ethernet and 10 Ethernet (100m). It
transfers nearly 10 GBPS data.
CAT 7
Consists of parallel conductors separated from each other and surrounded by a solid
dielectric. The conductors are contained within a braided copper tubing that acts as an
electrical shield
SHIELDED PAIR
The assembly is covered with a rubber or flexible composition coating that protects the
line from moisture and mechanical damage.
SHIELDED PAIR
consists of a central, insulated wire (inner conductor) mounted inside
a tubular outer conductor.
Rigid (Air) Coaxial Line
Types of coaxial lines
Rigid (Air) Coaxial Line
Flexible or Solid Coaxial Lines
Made with an inner conductor that consists of flexible wire insulated from the outer conductor
by a solid, continuous insulating material.
Flexible or Solid Coaxial Lines
are cylindrical, elliptical, or rectangular (cylindrical and rectangular shapes.
WAVEGUIDES
