电子元件与材料
電子元件與材料
전자원건여재료
ELECTRONIC COMPONENTS & MATERIALS
2015年
3期
42-44,48
,共4页
复合左右手传输线%小型%天线%CST仿真%零阶谐振%高增益
複閤左右手傳輸線%小型%天線%CST倣真%零階諧振%高增益
복합좌우수전수선%소형%천선%CST방진%령계해진%고증익
composite right/left-handed transmission line%compact%antenna%CST simulation%zero-order resonance%high gain
通过将天线谐振在零阶模式，以及在地平面增加细长线的方法设计了一款基于复合左右手传输线的小型天线，并利用仿真软件CST对该天线的特性进行了仿真验证。结果表明：天线的物理尺寸仅为23 mm×21 mm×1.8 mm(0.188λ0×0.171λ0×0.015λ0)，天线的零阶谐振频率为2.448 GHz，–10 dB回波损耗阻抗带宽达97.8 MHz，相对带宽达到4.0%，最大增益为2.451 dBi。所设计的天线具有尺寸小，结构简单、频带宽，增益高等优点，能够满足无线局域网（2.4～2.4835 GHz）的要求，有广阔的应用前景。
通過將天線諧振在零階模式，以及在地平麵增加細長線的方法設計瞭一款基于複閤左右手傳輸線的小型天線，併利用倣真軟件CST對該天線的特性進行瞭倣真驗證。結果錶明：天線的物理呎吋僅為23 mm×21 mm×1.8 mm(0.188λ0×0.171λ0×0.015λ0)，天線的零階諧振頻率為2.448 GHz，–10 dB迴波損耗阻抗帶寬達97.8 MHz，相對帶寬達到4.0%，最大增益為2.451 dBi。所設計的天線具有呎吋小，結構簡單、頻帶寬，增益高等優點，能夠滿足無線跼域網（2.4～2.4835 GHz）的要求，有廣闊的應用前景。
통과장천선해진재령계모식，이급재지평면증가세장선적방법설계료일관기우복합좌우수전수선적소형천선，병이용방진연건CST대해천선적특성진행료방진험증。결과표명：천선적물리척촌부위23 mm×21 mm×1.8 mm(0.188λ0×0.171λ0×0.015λ0)，천선적령계해진빈솔위2.448 GHz，–10 dB회파손모조항대관체97.8 MHz，상대대관체도4.0%，최대증익위2.451 dBi。소설계적천선구유척촌소，결구간단、빈대관，증익고등우점，능구만족무선국역망（2.4～2.4835 GHz）적요구，유엄활적응용전경。
A compact antenna based on composite right/left-handed transmission line structure was designed, and realized by adjusting resonance of the antenna to be in zero order mode and adding a slender line on the ground plane. Simulation was performed for the characteristics of the antenna with the software CST. The simulation results show that when the physical size of antenna is 23 mm×21 mm×1.8 mm (0.188λ0×0.171λ0×0.015λ0), the zero-order resonance frequency of antenna is 2.448 GHz,–10 dB return loss impedance bandwidth is 97.8 MHz, relative bandwidth is 4.0%, and the largest gain can achieve 2.451 dBi. The designed antenna has the advantages of a small size, simple structure, wide bandwidth and high gain, which could meet the requirements of the wireless local area network (2.4–2.4835 GHz), and has a further applications.
