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Reg. No:

Sudharsan Engineering CollegeSathiyamangalam622 501, Pudukkottai (Dt.)

.!. " .#e$h. Deg%ee & 'y$le #et& S*#+ S!!S#!R

!'2-5- /N#!NN/ /ND /! PRP/3/#N('ommon to / 4 S!'#N)

(R!3/#N 2007&'+!NN/)'la : 8!/R(/4) Date :1-.02.2019#ime: - +ou% aimum :100 ma%k

/n;e% /

8/12/2019 AWP-CT-1-Q-set1

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Reg.

No:

Sudharsan Engineering CollegeSathiyamangalam622 501, Pudukkottai (Dt.)

.!. " .#e$h. Deg%ee & 'y$le #et& S*#+ S!!S#!R

!'2-5- /N#!NN/ /ND /! PRP/3/#N('ommon to / 4 S!'#N)

(R!3/#N 2007&'+!NN/)'la : 8!/R(/4) Date :1-.02.2019#ime: - +ou% aimum :100 ma%k

/n;e% /

8/12/2019 AWP-CT-1-Q-set1

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14.a. 2n antenna array consists of two identical isotropic radiators spaced by a distance of d564

meters and fed with c)rrents of e-)al magnit)de b)t with a phase difference 7. *val)ate the

res)ltant pattern for 7(oand thereby identify the direction of ma#im)m radiation and

minim)m radiation. 1/0

8R0

b. Derive the e#pressions for field pattern of end fire array of n so)rces of e-)al amplit)de andspacing.

1". a.i.What is a loop antenna? Derive the e#pressions for the far field components of a small loop

2ntenna. $0

ii. Derive the radiated power and radiation resistance of small loop antenna. $0

8R0 b.*#plain the following terms with respect antenna 1/0

i. Gain ii. Radiation attern iii. 9np)t impedance iv. !eam solid angle

v. !andwidth