MICRO STRIP ANTENNA COMPRISED OF TWO SLOTS

摘要

A microstrip antenna with two slots is provided to control a resonant frequency independently by changing the length, the width, and the position of two slots. A microstrip antenna includes a conductive plate(110), a substrate(120) and a coaxial line(150). The conductive plate has a first hole. The substrate is positioned on the conductive plate. The microstrip pitch(130) is formed in an upper part of the substrate. The microstrip patch has a second hole. Two slots with the different size are inserted into the microstrip patch. Two slots are a first Y slot and a second Y slot. The size of the first Y slot is greater than the size of the second Y slot. The first Y slot induces the low resonant frequency. The second Y slot induces the high resonant frequency. The coaxial line contacts the microstrip patch by passing through the first and second holes.