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Universitas Negeri Jakarta
Sesions#01Dipol Hertz (Antena Kawat Pendek)
Teguh Budi P M.Si
Jurusan Fisika
Fakultas Matematika dan Ilmu Pengetahuan Alam
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UNIVERSITAS NEGERI JAKARTA
OUTLINE
Dipol Hertz (Antena Kawat Pendek)
Medan E
Medan B
Intensitas dan Intensitas Rata-rata
Daya rata-rata radiasi
© 2010 Universitas Negeri Jakarta | www.unj.ac.id | 206/03/2011
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UNIVERSITAS NEGERI JAKARTA
Dipol Hertz (Antena Kawat Pendek)
• pendahuluan
• Perumusan
• Daya Rata-Rata
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UNIVERSITAS NEGERI JAKARTA
Pendahuluan
Dipol Hertz adalah sebuah antena pendek
yang terdiri dari sepotong kawat yang
panjangnya sangat kecil yang mengangkut
arus bolak balik dengan memodelkan
sebuah dipol listrik yang terpisah dengan
jarak tertentu
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Ilustrasi
Model antena dipol Hertz
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Perumusan Model
Muatan listrik diberikan oleh
dengan momen dipol
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Potensial Mundur
dengan
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Aproksimasi 1
Dalam aproksimasi ini
dan
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sehingga
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Aproksimasi 2
Dalam aproksimasi ini berlaku
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Potensial listriknya menjadi
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UNIVERSITAS NEGERI JAKARTA
Aproksimasi 3
Dalam aproksimasi ini berlaku
06/03/2011 © 2010 Universitas Negeri Jakarta | www.unj.ac.id | 12
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Permodelan Arus
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Arus listrik yang mengalir
jadi
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Medan E
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Medan B
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Intensitas
Intensitas rata-rata
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Daya rata-rata radiasi
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