STUPIDSID
1 (a)
Compare strip lines and Micro strip lines.
5 M
1 (b)
Explain the significance of Retarded magnetic vector potential and Retarded electric Scalar potential.
5 M
1 (c)
With suitable example explain pattern Multiplication for Antenna Arrays.
5 M
1 (d)
Explain how Richard's Transformation and unit elements are useful in RF filter designing.
5 M
2 (a)
Explain with equivalent circuits the RF behavior of Resistor, Inductor and Capacitor.
10 M
2 (b)
Design a maximally flat LPF with a cut-off frequency of 2GHz; generator and Load Impedance of 50? ; and with 15 dB Insertion Loss at 3 Ghz with discrete LC components.
10 M
3 (a)
Using Image Parameter method design a Low-pass composite filter with a cut-off frequency 2 Mhz and Impedance of 75? Place the Infinite attenuation pole at 2.05MHz.
10 M
3 (b)
Derive Array factor of N-element liner array, where all elements are equally fed and spaced. Also find the expression for the position of principle maxima, nulls and secondary maxima.
10 M
4 (a)
Design a broadside Dolph-TChebyshev array of 6 elements with spacing 'd' between the elements and with a major to minor lobe ratio of 26 dB. Calculate the excitation coefficients.
10 M
4 (b)
Explain the working principle of Yagi-Uda Antena and draw its radiation pattern. Mention its applications.
10 M
5 (a)
Explain the structure of Micro strip Antenna. Discuss its feed mechanisms and Applications.
10 M
5 (b)
Explain the following terms related to Basic Antenna concepts with relevant equations:
i) Radiation Resistance
ii) Effective aperture
iii) Beam width
iv) Directivity
v) Antenna efficiency.
i) Radiation Resistance
ii) Effective aperture
iii) Beam width
iv) Directivity
v) Antenna efficiency.
10 M
Write short notes on the following:
6 (a)
Friss Transmission formula.
5 M
6 (b)
Ground effect in Antenna.
5 M
6 (c)
Near field and far Radiation Related to Antenna.
5 M
6 (d)
Log Periodic Antenna.
5 M
More question papers from RF Modelling and Antennas