一種縮小化多頻環形天線

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

097121014

專利證號

I 360916

專利獲證名稱

一種縮小化多頻環形天線

專利所屬機關 (申請機關)

國立中山大學

獲證日期

2012/03/21

技術說明

本發明係關於一種縮小化多頻環形天線，包含：一介質基板、一接地面及一輻射部；該接地面位於該介質基板上，並具一接地點；而該輻射部則包含：一支撐介質、一耦合金屬片、一連接金屬線及一輻射金屬環；上述之該耦合金屬片及該連接金屬線，皆為該支撐介質所支撐，連接金屬線之一端連接至該耦合金屬片，另一端則連接至一訊號源；輻射金屬環亦為該支撐介質所支撐，且圍繞該連接金屬線以及該耦合金屬片，又其長度大致為天線最低操作頻率之四分之一波長，並具有一第一末端區間、一第二末端區間以及一短路點，其中該第一末端區間與該耦合金屬片之間，具有一特定距離，而該短路點則位於該第二末端區間，且該短路點電氣連接至該接地面之接地點。 The present invention is related to a compact multiband loop antenna. The antenna comprises a dielectric substrate, a ground plane, and a radiating portion. The ground plane is located on the dielectric substrate and has a grounding point. The radiating portion comprises a supporter, a coupling strip, a connecting line and a loop strip. The coupling strip and connecting line are both located on the supporter. One end of the connecting line is connected to the coupling strip and the other end is connected to a signal source. The loop strip is also located on the supporter and surrounds the coupling strip and the connecting line. The length of loop strip is about 0.25 wavelength of the antenna’s first resonant mode. The loop strip has a first end, a second end, and a shorting point. The first end is close to the coupling strip with a specific distance. The shorting point is near the second end, where the shorting point is electrically connected to the grounding point on the ground plane.

備註

本部(收文號1040002157)同意該校104年1月5日1040000012號函申請終止維護專利(中山)

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