Given a 9-volt source with impedance Rs = 25Ω is connected to a transmission line with Z0 = 50Ω, length = 0.1m and Vp = 1*108 m/s followed by a load ZL = 75Ω calculate.
mathematics
Description
This question is about transmission lines and matching
(a) Given a 9-volt source with impedance Rs = 25Ω is connected to a transmission line with Z0 = 50Ω, length = 0.1m and Vp = 1*108 m/s followed by a load ZL = 75Ω calculate.
⦁ (i) The initial voltage on the line.
[1 mark]
⦁ (ii) The voltage at the load after 5T (where T is the time taken to travel from one end of the line to the other), sketch a bounce diagram
⦁ (iii) The voltage the line will settle to.
⦁ (iv) When and why are transmission lines required?
Question 2 continued
(b) Given the PCB mounted 200MHz chip antenna shown in Figure 2 and a measured value of 20+70j design an L match. State all assumptions.
Matching circuit
Length =7.2cm
Figure 2 PCB chip antenna with matching area.
