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US 2002/0118134 A1Published application
Planar helix antenna with two frequencies
AssigneeAuden Technology Mfg. Co., Ltd.
InventorI-Fong Chen
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AssigneeAuden Technology Mfg. Co., Ltd.
InventorI-Fong Chen
Estimating the term…
A planar helix antenna with two frequencies, comprising a circuit board with suitable area and thickness and an upper and a bottom surface on which several microstrip antenna sections are disposed in a an inclined and mutually spaced way, wherein, through holes are provided on the circuit board for conjunction ends of the antenna sections on the upper and bottom surfaces for electric connection to form a planar helix microstrip antenna; the top most end of the antenna sections has top loading, while the bottom end thereof is an out feeding point. The antenna sections get a high frequency harmonic oscillation point by coupling; while connection of these microstrip antenna sections on the front and the back sides can form by its electrical gross length a low frequency harmonic oscillation point. Such variation of space and top loading of the microstrip antenna sections can endue the dual frequency planar and miniaturized helix microstrip antenna with superior performance.
A planar helix antenna with two frequencies, comprising an electric circuit board with set area and thickness as well as having an upper surface and a bottom surface on which a plurality of microstrip antenna sections are disposed in a an inclined and mutually spaced way, wherein, through holes are provided on said circuit board for conjunction ends of said microstrip antenna sections on said upper and bottom surfaces for electric connection to thereby form a planar helix microstrip antenna, the top most end of said microstrip antenna sections has top loading, while the bottom end thereof is an out feeding point.
Dependencies are inferred from the claim text.