Electromagnetic theory miscellaneous

Electromagnetic theory miscellaneous

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Electromagnetic Theory

Electromagnetic theory miscellaneous
  1. A 50 Ω lossless T.L. has a pure reactance of j 100 Ω as its load. The VSWR in the live is—








  1. View Hint View Answer Discuss in Forum

    Reflection coefficient of the line,

    Γ =
    ZL – Z0
    ZL + Z0

    =
    j 100 – 50
    		 =
    2j – 1
    j 100 + 502j + 1

    and
    |Γ| =
    √(2)² + (-1)²
    		 =
    √5
    		 = 1
    √(2)² + (1)²√5

    (˙.˙ we are interested in magnitude only)
    Now,
    VSWR =
    Γ + 1
    		 =
    1 + 1
    		 =
    2
    		 = ∞
    Γ – 11 – 10

    Correct Option: B

    Reflection coefficient of the line,

    Γ =
    ZL – Z0
    ZL + Z0

    =
    j 100 – 50
    		 =
    2j – 1
    j 100 + 502j + 1

    and
    |Γ| =
    √(2)² + (-1)²
    		 =
    √5
    		 = 1
    √(2)² + (1)²√5

    (˙.˙ we are interested in magnitude only)
    Now,
    VSWR =
    Γ + 1
    		 =
    1 + 1
    		 =
    2
    		 = ∞
    Γ – 11 – 10