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DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING

QUESTION BANK EVEN SEMESTER

SUB CODE & NAME: EC2353 ANTENNA & WAVE PROPAGATION YEAR / SEM: III / VI

Staff Name : D.RAMESH, AP/ECE

UNIT I - RADIATION FIELDS OF WIRE ANTENNAS

PART-A (Two Marks

. Def!"e a"te""a.

2. Def!"e a He#t$!a" %!'(e.

3. Def!"e )e*t'# 'te"t!a(.

+. Wat !- mea"t #eta#%e% 'te"t!a(0

5. D#a1 te #a%!at!'" atte#" 'f a '#!$'"ta( %!'(e.

. Def!"e #a%!at!'" #e-!-ta"*e.

. Def!"e *4##e"t e(eme"t.

. Def!"e a(f 1a)e %!'(e.

6. Def!"e 74a#te# 1a)e m'"''(e.

8. Def!"e W!#e A"te""a-.

. Def!"e Ra%!at!'" Re-!-ta"*e.

2. Def!"e *4##e"t e(eme"t.

PART B (!" Marks

!#$ De#!)e te e9#e--!'" f'# te #a%!ate% f!e(% f#'m a -'#t %!'(e.

+. De#!)e te e9#e--!'" f'# '1e# #a%!ate% a *4##e"t e(eme"t a"% !t- #a%!at!'" #e-!-ta"*e.5. Def!"e %!'(e a"te""a. De#!)e te #a%!at!'" f!e(% a"% #a%!at!'" #e-!-ta"*e f#'m a

a(f

1a)e %!'(e.

. De#!)e te e9#e--!'" f'# #a%!at!'" f!e(% a"% #a%!at!'" #e-!-ta"*e.

. W#!te -'#t "'te '" ! Ve*t'# 'te"t!a( !! m'%!f!*at!'" 'te"t!a(

!!! Reta#%e% P'te"t!a( !) *aa*!ta"*e Hat

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UN I T I I - ANTENNA FUNDAMENTALS AND ANTENNA ARRAYS

P ART A (Two Marks

. State atte#" m4(t!(!*at!'"

2. Def!"e effe*t!)e a#ea a"% -e*!f !t- -!;"!f!*a"*e.

3. Wat !- '(a#!$at!'"0

+. Def!"e Ra%!at!'" !"te"-!t.

5. Def!"e D!#e*t!)e ;a!".

. Def!"e D!#e*t!)!t

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. Def!"e

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2.! E9(a!" te *'"-t#4*t!'" 'f a;! a"te""a. D!-*4-- te %e-!;" a-e*t-.

!! Se*!f te %e-!;" *'"-!%e#at!'" f'# a #'m!* a"te""a.

3. E9(a!" te ;e'met# 'f a ('; e#!'%!* a"te""a. H'1 1!%ea"% 'e#at!'" !- '--!(e 1!t

t!- a"te""a. G!)e te %e-!;" e?4at!'"-

+.! W#!te a -'#t "'te '" T#a)e(!"; 1a)e a"te""a.

!! W#!te a -'#t "'te '" Se(f a"% m4t4a( !me%a"*e 'f a"te""a.

UN I T I % - APERTURE AND LENS ANTENNAS

P ART A ( Two Marks

. Wat a#e -e*t'#a( '#" a"te""a-0

2. Wat a#e -e*'"%a# a"te""a0

3. Name a" f'4# -4-t#ate mate#!a(- f'# m!*#' -t#! a"te""a0

+. Wat a#e te %!ffe#e"t met'%- 'f fee%!"; -('t a"te""a-0

5. Wat a#e te a(!*at!'" 'f -('t a"te""a0

. Def!"e H4;e"- P#!"*(e.

. Def!"e *' a9!a( a"te""a0

. Def!"e

%!#e*t!)!t a"% '1e# ;a!" 'f te '#" a"te""a0

!$ E9(a!" te #!"*!(e 'f 'e#at!'" & a(!*at!'" 'f a#a'(!* #ef(e*t'# a"% !t- te- 'f

fee%!";

3.! Def!"e !"%4*t!'" a"% e?4!)a(e"*e te'#em- !! De#!)e te fa# f!e(% ;e"e#ate%

H4;e"- -'4#*e.

+. Dete#m!"e te '1e# #a%!ate% f#'m te 'e"Fe"% 'f a *'a9!a( (!"e 0

5. Wat a#e te te- 'f (e"- a"te""a0 G!)e te e?4at!'" 'f te -ae 'f te (e"-

. ! Wat %' '4 4"%e#-ta"% B4"e%e#; (e"-0 !! Def!"e

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3. Wat a#e %!ffe#e"t te- 'f %!)e#-!t #e*et!'"0

+. Wat !- mea"t fa%!";0

5. Wat !- m4(t!at #'a;at!'"0

. Def!"e 1a)e )e('*!t a"% ;#'4 )e('*!t.

. Wat !- mea"t >a#a%a- #'tat!'"0

. Def!"e -=! %!-ta"*e.

6. Wat !- %4*t #'a;at!'"0

8. Wat a#e te fa*t'#- tat affe*t te #'a;at!'" 'f #a%!' 1a)e-0

. Def!"e G#' f#e?4e"*.

2. Def!"e *#!t!*a( f#e?4e"*.

3. State: >a#a%a- (a1.

+. Wat !- m4(t!' #'a;at!'"0

Par B

5. De#!)e te e9#e--!'" f'# #ef#a*t!)e !"%e9 'f !'"'-e#e a"% *#!t!*a( f#e?4e"*.

. De#!)e te e9#e--!'" f'# *a(*4(at!"; f!e(% -t#e";t at a %!-ta"*e !" -a*e 1a)e P#'a;at!'"

. E9(a!" !" %eta!( a'4t !'"'-e#e #'a;at!'".

. W#!te -'#t "'te- '" ! G#'4"% 1a)e #'a;at!'" !! -a*e 1a)e #'a;at!'"

6. De#!)e te e9#e--!'" f'# Pe#m!t!)!t a"% *'"%4*t!)!t 'f !'"!$e% ;a-.

28. E9(a!" te %!ffe#e"t te- 'f D!)e#-!t te*"!?4e.

2. Def!"e a"% e9(a!" f'# !'"'-e#!* #e;!'"

! C#!t!*a( f#e?4e"*

!! MD>

!!! S=! $'"e

!) )!#t4a( e!;t 'f a (ae#

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