Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2005-06-28
2005-06-28
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S7000MS
Reexamination Certificate
active
06911944
ABSTRACT:
An antenna apparatus is constituted by first, second, third, and fourth wire antenna elements and a connection element. The sum of the lengths of the first, second, and fourth wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first, second, and fourth wire antenna elements. The sum of the lengths of the second, third, and fourth wire antenna elements is ½ the wavelength corresponding to a parallel-resonance frequency of the second, third, and fourth wire antenna elements. The sum of the lengths of the first and third wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first and third wire antenna elements. The parallel-resonance frequency is higher than the series-resonance frequency of the first, second, and fourth wire antenna elements and lower than the series-resonance frequency of the first and third wire antenna elements.
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Ito Takayoshi
Murakami Yasushi
Sekine Syuichi
Shoki Hiroki
Kabushiki Kaisha Toshiba
Le Hoang-anh
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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