| 摘要 |
PURPOSE: An UWB(Ultra Wideband) antenna with a multiple band rejection function is provided to prevent performance degradation due to coupling between devices by minimizing coupling between band rejection devices. CONSTITUTION: An antenna(100) comprises a substrate(110), an emitting unit(120), and a feeding unit(130). The antenna has a bilateral symmetric shape along a central line excluding a meander line. The substrate is composed of the dielectric substrate with a constant dielectric permittivity. The emitting unit is formed in one side of the substrate to receive and transmit an ultra wideband electric wave. The emitting unit is a square shaped patch with a matching step in a lower unit. The power feeding unit is formed in the lower unit of the emitting unit. The power feeding unit is composed of a feeding line(131) which supplies an electric signal and a first ground(132) and a second ground(133) which are formed in the left side of the feeding line.
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