DUAL BAND LINEAR ANTENNA ARRAY
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United States of America Patent
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app pub date -
Aug 18, 2003
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Aug 18, 2003
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Abstract
A dual band linear antenna array, having a set of radiator constructed by four elongate metal plates. The metal plates are arranged to form a rectangular array. By serially connecting to a signal feed terminal, the roots of the metal plates are connected to a copper tube via a coaxial cable external conductor (ground signal). One pair of the metal plates has the same length, which is about one quarter wavelength of the high-frequency electric wave received thereby and transmitted therefrom. The other pair of the metal plates has longer length at about one quarter wavelength of a low-frequency electric wave received thereby and transmitted therefrom. Thereby, an array of dual band antenna is obtained to achieve omni-directional reception and transmission of radiation.
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