What does a lossless transmission line mean?
A lossless line is defined as a transmission line that has no line resistance and no dielectric loss. This would imply that the conductors act like perfect conductors and the dielectric acts like a perfect dielectric.
What is a formula for velocity at lossless transmission line?
C is the shunt capacitance (F/m). L and C are related to the velocity factor by: velocity of propagation = 1/√LC = 3 × 108/√ɛr. For an ideal, lossless line R = G = 0 and Zo reduces to √(L/C).
What is the condition for lossless transmission line?
Explanation: Lossless transmission line refers to a line with no losses or attenuation. This is possible only when the conductor is perfect and the dielectric is lossless. Explanation: The lossless transmission line will have minimal loss of power. Thus in the ideal cases, the resistance is assumed to be zero.
How do you calculate transmission line efficiency?
Efficiency of Transmission Line Transmission efficiency is defined as the ration of receiving end power PR to the sending end power PS and it is expressed in percentage value. cosθs is the sending end power factor. cosθR is the receiving end power factor.
What is transmission line equations?
1(b) and taking the limit as Δz→0 the transmission line equations are. ∂v(z,t)∂z=−Ri(z,t)−L∂i(z,t)∂t∂i(z,t)∂z=−Gv(z,t)−C∂v(z,t)∂t. Note. V(z) is a phasor and v(z,t)=ℜ{V(z)eȷωt}.
Which of these is true of a lossless line?
6. For a lossless line, which of the following is true? Explanation: For a lossless line, attenuation constant α is 0. Hence substituting α=0 in γ=α+jβ, we get γ= jβ.
What is lossless propagation?
Key Takeaways. A lossless medium is a medium with zero conductivity and finite permeability and permittivity. When an electromagnetic wave propagates through a lossless medium, the amplitude of its electric field or magnetic field remains constant throughout the propagation.
What is the value of alpha for lossless line?
0
Answer: a Explanation: For a lossless line, attenuation constant α is 0. Hence substituting α=0 in γ=α+jβ, we get γ= jβ.
Which parameters are zero in the lossless line?
Explanation: The attenuation constant, resistance and conductance are zero for a lossless line.
What is transmission line equation?
The wave velocity, v = ω/γ, is the speed with which a peak in the wave propagates along the transmission line. The wavelength, λ = 2π/γ, is the distance between peaks in the wave at a particular point in time.