CAJ | 학술논문

提出了一种具有新颖缺陷地结构的多频段新型平面天线，该天线采用微带馈电方式进行馈电，改进的接地板通过延伸两段倒T字形枝节，得到了蓝牙、TD-LTE和X波段卫星通信频段；WiMAX通信频段则通过左右对称的倒钩形结构辐射贴片获得。该天线实际测量带宽为2.42~2.78 GHz、3.02~3.62 GHz和7.25~7.88 GHz，能完整覆盖蓝牙、TD-LTE、WiMAX和X波段卫星通信下行频段，尺寸为20 mm×30 mm。天线结构简单、尺寸小及全向性辐射特性表明该天线能很好地满足便携式多频段移动设备的需求。
제출료일충구유신영결함지결구적다빈단신형평면천선，해천선채용미대궤전방식진행궤전，개진적접지판통과연신량단도T자형지절，득도료람아、TD-LTE화X파단위성통신빈단；WiMAX통신빈단칙통과좌우대칭적도구형결구복사첩편획득。해천선실제측량대관위2.42~2.78 GHz、3.02~3.62 GHz화7.25~7.88 GHz，능완정복개람아、TD-LTE、WiMAX화X파단위성통신하행빈단，척촌위20 mm×30 mm。천선결구간단、척촌소급전향성복사특성표명해천선능흔호지만족편휴식다빈단이동설비적수구。
A novel planar monopole antenna with defected ground structure and multi-frequency characteristics was presented. The antenna had a simple structure which was fed by microstrip line and consisted of two inversed hook-shaped stubs to obtain WiMAX band and two inversed T-shaped stubs that could achieve the bands of Bluetooth, TD-LTE and downlink of X-band satellite communication systems. The experimental results show that the proposed antenna meets a bandwidth from 2.42 GHz to 2.78 GHz, 3.02 GHz to 3.62 GHz and 7.25 GHz to 7.88 GHz, which can cover Bluetooth, TD-LTE, WiMAX and downlink of X-band satellite communication systems. The antenna has a small overall size of 20 mm×30 mm. The antenna has a simple structure, small over size, and omni-directional radiation pattern, which makes it suitable for multi-band mobile wireless device applications.