CAJ | 학술논문

设计了一种同轴馈电的双1型缝隙结构的双频微带贴片天线。采用加载缝隙的方法改变圆形贴片表面电流路径来实现天线的双频带工作，利用电磁仿真软件HFSS 14.0对天线特性进行仿真，通过分析缝隙宽度和长度对天线辐射特性的影响，获得了最佳结构参数。结果表明，当回波损耗小于–10 dB，天线工作于2.57~2.63 GHz和5.78~5.84 GHz，且相对带宽分别达到2.3%和1.0%，天线的整体辐射特性良好，且结构简单，易于实现，可应用在微波存取全球互通（WiMAX 2.6 GHz）和无线局域网络（WLAN 5.8 GHz）。
설계료일충동축궤전적쌍1형봉극결구적쌍빈미대첩편천선。채용가재봉극적방법개변원형첩편표면전류로경래실현천선적쌍빈대공작，이용전자방진연건HFSS 14.0대천선특성진행방진，통과분석봉극관도화장도대천선복사특성적영향，획득료최가결구삼수。결과표명，당회파손모소우–10 dB，천선공작우2.57~2.63 GHz화5.78~5.84 GHz，차상대대관분별체도2.3%화1.0%，천선적정체복사특성량호，차결구간단，역우실현，가응용재미파존취전구호통（WiMAX 2.6 GHz）화무선국역망락（WLAN 5.8 GHz）。
A double-1-shaped dual-band microstrip antenna which was fed by coaxial line was proposed. The antenna could realize the function of compact and multi-frequency band by changing the circular patch surface current path. Numerical simulation was performed for the antenna with the software HFSS14.0. Meanwhile, the best structural parameters of the antenna were obtained by analyzing the influence of slot width and length on antenna radiation characteristics. The simulation results show that the frequency channels of the antenna are 2.57–2.63 GHz and 5.78–5.84 GHz when return loss less than –10 dB, and the relative bandwidths of the antenna are 2.3% and 1.0%, respectively. Moreover,it has good unitary radiation and simple configuration, and can be applied in the world interoperability for microwave access for 2.6 GHz (WiMAX 2.6 GHz) and wireless local area network for 5.8 GHz (WLAN 5.8 GHz).