ABSTRACT
At the end of this chapter you should be able to:
• appreciate the purpose of a transmission line
• define the transmission line primary constants R, L, C andG
• calculate phase delay, wavelength and velocity of propagation on a transmission line
• appreciate current and voltage relationships on a transmission line
• define the transmission line secondary line constants Z0, γ , α and β
• calculate coefficient in terms of the primary line constants
• understand and lines
• understand wave coefficient
• understand standing wave ratio
Atransmission line is a one point to another and energy can be sent. Thus distribution lines are
lines; in electronics, however, the term usually implies a line used for the transmission of radio-frequency (r.f.) energy such as that from a radio transmitter to the antenna. An important feature of a transmission line is that it
should guide energy from a source at the sending end to a load at the receiving end without loss by radiation.