ANTENNA DEVICE
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United States of America Patent
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Issued Date -
Aug 3, 2017
app pub date -
Jan 28, 2016
filing date -
Jan 28, 2016
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Abstract
An antenna device includes a substrate having a first plane and a second plane, a plurality of cascaded antenna sets are arranged on the first plane, and each cascaded antenna set has a plurality of antenna units and a plurality of microstrip lines. Every two antenna units is electrically connected with one microstrip line, whereby the antenna units are cascaded through the microstrip lines. A signal processor is electrically connected with the middle microstrip line of each cascaded antenna set, and at least one input signal is fed into the cascaded antenna sets, and then transmitted to the outside antenna units from the middle antenna unit, thereby improving a gain of them. The present invention changes a fan-beam radiation field pattern of a cascaded antenna set into a multi-point pencil-beam radiation field pattern or a radiation field pattern with different angles, thereby increasing the overall gain.
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