| 摘要 |
A dual band patch antenna for a Zigbee system is provided to enhance user convenience by adjusting a length of a slot and a size of a radiating patch. A feeding line is arranged to traverse a center portion of a microstrip patch antenna in a normal direction. A radiating patch surface(310) is attached to one surface of a slot and freely radiates electromagnetic waves which are generated from a magnetic current, to a free space. F-type slots(321,322,323) are arranged at the center of the radiating patch surface. A CPWG(CoPlanar Waveguide with Ground) structure feeding line(311) is connected to a front substrate on the radiating patch surface and transmits signals. A rectangular slot(320) is smaller than the F-type slot which is arranged on a left side of the feeding line. A length of a long slot on the F-type slot is adjusted to regulate a low frequency band. A size of the radiating patch is adjusted to adjust a global frequency band.
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