STUPIDSID
Write short notes on following :-
1 (a)
Chip components
5 M
1 (b)
Microstrip lines and strip lines
5 M
1 (c)
Large signal FET model
5 M
1 (d)
ABCD Parameters
5 M
2 (a)
Explain what is Skin depth? Calculate the skin depth for copper and aluminium at 0.86 and 1.2 GHz? Also find the resistance of an 8 cm wire with diameter of 1.5 mm? \[ \sigma_{CU}=64.516 \times 10^6 (s/m), \ \sigma_{Al}=40\times 10^6 (s/m) \]
10 M
2 (b)
Explain with the equivalent circuits the Radio frequency behavior of Resistor, Inductor and Capacitor?
10 M
3 (a)
Explain the folllowing terms related to the filter Design? Insertion Loss, Ripple Factor, Bandwidth
6 M
3 (b)
Explain why the ideal filter response cannot be realized?
4 M
3 (c)
Design the Butterworth High pass filter having cutoff frequency of 250 MHz and -15dB response at 200 MHz?
10 M
4 (a)
Plot the following Impedance points on the smith chart? Z0=50Ω
23+j 42Ω, 12-j 109Ω, 72+j 42.5Ω and 115-j 22Ω
Calculate their equivalent admittance using smith chart?
23+j 42Ω, 12-j 109Ω, 72+j 42.5Ω and 115-j 22Ω
Calculate their equivalent admittance using smith chart?
8 M
4 (b)
Calculate the input impedance of the Transmission line using equations and the smith Chart, for Z0=50Ω, Z1=110+j 22Ω, εr=1.0, length of the line = 20 cm and operating frequency equal to 1.8 GHz?
12 M
5 (a)
Explain the equivalent circuit of the transmission line?
5 M
5 (b)
Derive the input impedance equation of Transmission line of length 'I'>
5 M
5 (c)
Using the input impedance equation of Transmission line, derive the input impedance equation for shorted and open circuit transmission line and draw their voltage, current and impedance waveform?
10 M
6 (a)
Define and derive AC parameter for BJT and FETs?
10 M
6 (b)
Write short notes on,
(i) High Electron Mobility Transistor
(ii) Small signal BJT model?
(i) High Electron Mobility Transistor
(ii) Small signal BJT model?
10 M
7 (a)
How the capacitor and inductors are realized using the sections of transmission line? Explain the same using the smith charts ?
6 M
7 (b)
What are Kuroda Identities? How they are used in realization of RF filters?
10 M
7 (c)
Explain what are Schottky Contacts?
4 M
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