Find the impedance of the quarter wavelength

Assignment Help Other Engineering

Reference no: EM131469735

2017 Assignment

Question 1:

Consider a transmission line with a characteristic impedance of Z_o = 50?. Use a Smith Chart sheet to show the following landmark points:

i. The matched point

ii. Z = 0Ω

iii. Z = ∞Ω

iv. Y = 0Ω

v. Y = ∞Ω

vi. Position where the inductive reactance is +jZo

vii. Position where the capacitive reactance is -jZo

viii. State why admittance (Y) is used designing using Smith Charts [4]

Question 2:

Assuming the characteristic impedance of the transmission line (Z_o) is 50?, use a separate Smith chart to plot the following load impedances and then find the corresponding admittances and de-normalise (give values in 1/? or mhos)

i. Z_L1 = ?50 + j50? [3]

Z_L2= 20? - j10? [3]

Question 3:

a. Assuming a transmission line With characteristic impedance (Z_o) = 50? and a load impedance (Z_L) = 40? - j25 ? is connected to the distal end of the transmission line, use a separate Smith Chart sheet to find the following:

i. The de-normalised input impedance at 0.2λ from the load

ii. The de-normalised input impedance at 8.4λ from the load

iii. The reflection coefficient reflection coefficient (?), the VSWR and the return loss (in dB)

Note: Move in a clockwise direction from the load (Z_L) toward the generator (TWG)

b. A transmission line with a characteristic impedance (Z_o) of 50? has a load impedance (Z_L) of 30- j40? attached to the distal end. It is necessary to use a quarter wavelength transformer or matching section to match the impedance of the line (Z_o) to the impedance of the load (Z_L), but in order to do this we must first deal with the reactive part of the load. Use a separate Smith Chart to solve this problem.

i. Find the length of 50? transmission line required to make the load look purely resistive (real) to enable a quarter wavelength matching section to be implemented.

ii. Find the impedance of the quarter wavelength matching section required to match the real part of the impedance that has been moved onto the horizontal line.

iii. Provide a diagram of the overall arrangement.

Reference no: EM131469735

Questions Cloud

Determine the true proportion of defectives in the lot : Graph the OC curves for the sampling plan described in Problem for both manufacturers A and B. A maker of personal computers, Noname, purchases 64K DRAM chips.

Describe in details what is hyperuricemia with gout : Describe in details what is hyperuricemia with gout. Describe in detail the symptoms of hyperuricemia with gout

Chech which assumptions not be accurate : Under what circumstances would the following assumptions not be accurate? The assumption that the probability law describing the number of periods.

Define the values for the various system costs and parameter : Discuss the following pro and con positions on using optimization models to design control charts: Con: "These models are useless to me because I don't feel.

Find the impedance of the quarter wavelength : IES3005 2017 Assignment. Find the impedance of the quarter wavelength matching section required to match the real part of the impedance

Explore the internal environment of the company you research : From the e-Activity, analyze the internal environment of the company you researched to determine that company's strengths and weaknesses.

What are the optimal values of n and k for this process : A local contractor manufactures the speakers used in telephones. The phone company requires the speakers to ring at a specified noise level (in decibels).

Explore how the division addresses customer needs : Describe how the division addresses customer needs and achieves competitive advantage. Format your paper consistent with APA guidelines.

Determine the probability that a lot is rejected : Samples of size 20 are drawn from lots of 100 items, and the lots are rejected if the number of defectives in the sample exceeds 2.

User Account

All Pages