现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
7期
79-81
,共3页
于家傲%姜永金%李有权%鞠志忠
于傢傲%薑永金%李有權%鞠誌忠
우가오%강영금%리유권%국지충
微带天线%圆极化%小型化%开槽
微帶天線%圓極化%小型化%開槽
미대천선%원겁화%소형화%개조
microstrip antenna%circularly polarization(CP)%miniaturized%slot
结合多种贴片开槽方案,采用正交馈电圆极化激励方式,实现了一款北斗B3(1268.52±10)MHz频点导航天线的小型化设计。通过电磁仿真软件HFSS对其结构参数进行优化仿真分析,数值结果表明:小型化天线在B3处的顶空增益为3.69 dB,低仰角增益≥-1.5 dB(≤±70°),反射损耗小于-10 dB的带宽为20 MHz,带内轴比≤2 dB。该小型化天线贴片尺寸相比同介电常数基板的同频点未开槽天线缩小72.8%,具有一定的应用前景。
結閤多種貼片開槽方案,採用正交饋電圓極化激勵方式,實現瞭一款北鬥B3(1268.52±10)MHz頻點導航天線的小型化設計。通過電磁倣真軟件HFSS對其結構參數進行優化倣真分析,數值結果錶明:小型化天線在B3處的頂空增益為3.69 dB,低仰角增益≥-1.5 dB(≤±70°),反射損耗小于-10 dB的帶寬為20 MHz,帶內軸比≤2 dB。該小型化天線貼片呎吋相比同介電常數基闆的同頻點未開槽天線縮小72.8%,具有一定的應用前景。
결합다충첩편개조방안,채용정교궤전원겁화격려방식,실현료일관북두B3(1268.52±10)MHz빈점도항천선적소형화설계。통과전자방진연건HFSS대기결구삼수진행우화방진분석,수치결과표명:소형화천선재B3처적정공증익위3.69 dB,저앙각증익≥-1.5 dB(≤±70°),반사손모소우-10 dB적대관위20 MHz,대내축비≤2 dB。해소형화천선첩편척촌상비동개전상수기판적동빈점미개조천선축소72.8%,구유일정적응용전경。
Combining with the variety of slotting plans,a miniaturized designed of frequency point navigation antenna of Bei-dou-B3 frequency (1 268.52 ± 10 MHz) with the incentive method of circular polarization orthogonal feedback is realized. The structure parameter is simulated and analyzed through HFSS,the numerical result shows that the peak gain value at B3 is 3.69 dB, low elevation gain(±70°)≥-1.5 dB. The bandwidth is 20 MHz when the return loss is less than -10 dB,and the axial ratio value≤2 dB. The proposed antenna-size reduced by about 72.8% as compared to the no slot antenna with the same frequency point of the same dielectric constant substrate and at a given operating frequency,it has a certain application prospect.