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g.gif (800 bytes)
EXAM ANSWERS EXAM GRADING . . .
g.gif (800 bytes)
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8-th Semester EE&CE
Antennas
June 98 Examination
Answers

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1

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1.gif (1577 bytes)
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2

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xOy

yOz

zOx

q

90°

0°

180°

[0° , 180° ]

 j  

0°

180°

90°

0°

180°

270°

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3

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x

0°

10°

20°

30°

40°

50°

60°

70°

80°

90°

3-1.gif (864 bytes)

0

0.10

0.18

0.20

0.14

0.04

0.32

0.64

0.90

1.00

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0° 50° 130° 180°
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4

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cosx

1

2/3

- 2/3

- 1

x

0°

48°

132°

180°

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  xOy yOz zOx
cosx sinf ± sinq 0
q 90° 42° 90° 138° Not
exist
f 42° 90° 138° 222° 270° 318° 90°
270°
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4xoy.gif (3936 bytes) 4zoy.gif (4113 bytes)
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5

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5zOx.gif (3130 bytes) 5xOy.gif (3216 bytes) 5yOz.gif (3213 bytes)
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6

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2 0.20 84° 1.43
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7

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7-0.gif (1775 bytes)

7-1.gif (2063 bytes)
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8

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8.gif (2081 bytes)
8-1.gif (1656 bytes)
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9

After directional angles computation :

9.gif (860 bytes)
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10

After transformation to Cartesian coordinates :

 

 

10.gif (1233 bytes)
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EXTRA!

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Virtual Answers
5xyz-wrl.gif (2334 bytes) 10xyz-wrl.gif (2456 bytes)
1 : VRML1 8 : VRML1
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g.gif (800 bytes)
EXAM ANSWERS EXAM GRADING . . .
g.gif (800 bytes)
.                                     . .                                     . .                                     . .                                     . ANTENNAS - DUTH
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c-cl-new.gif (222 bytes)