a.Derive expression for self and mutual impedance of couple dipole antennas
5

:0. Derive expression for filed pattern of an Yagi -Uda antenna 4
a. Derive expression for far field pattern and direcavity of ahorn antenna. 3
b. Explain Horn design algorithm 3

c. Design a micro-st-ip patch antenna for 2.4Ghz . The patch substrate has a 3
dielectric constant 2.2 with height 2.2mm http:/'www.kTuonline.com

PART ^

a. Derive Rumsey Principle for frequency independent antennas. 6

b. Explain array design using Woodward-Lawson Frequency-Sampling Design 6
a. Derive general expression for array factor of non isotropic antennas. 4
b. Explain Butler Mafrix Beam Forming 4

c. Explain design steps of a log periodic dipole antenna 4

a. Design a 5 element Dolph- Chebyshev array with peak side lobe level 22dB 4
b. Explain array design using Schelkunoff's zero placement method. 4

c. Derive expression for directivity of an end fire array. 4