Ultra-WideBand Slot Antenna having a Semi-Circular Extension

摘要

The present invention relates to UWB (Ultra-WideBand) slot antenna using a semicircular extension , the gain variation ( gain variation) for determining the class extension , a trapezoidal shape , which facilitates the flow of current patches , rectangular slot for broadband , is composed of the stub (stub) for broadband impedance matching , compact , easy portability , and O , the UWB system and satisfies the frequency bandwidth (3.1~10.6 ) required . Further , all that is around the radial direction has a directional pattern (omni-directional pattern), This phase of the far field (far-field) has a gain variation of the linear flat 2dBi below . And , there is an advantage that low manufacturing cost of the antenna .