CAJ | 학술논문

设计了一种用于无线通信的新型宽带旋转贴片天线，通过对称旋转天线的矩形辐射贴片，天线的带宽得以显著扩展.讨论了贴片旋转角度及其他结构参数对天线带宽的影响.为了验证该设计的有效性，对所设计的天线原型进行了实际制作和测试.测试结果表明，所设计天线的阻抗带宽(10 dB回波损耗)可达6.97 GHz (2.29~9.26 GHz)，相对带宽约为120.7%，这一带宽接近传统交叉单极子天线带宽的两倍.此外，该天线在整个工作频率范围内具有较好的全向辐射特性和增益水平.
설계료일충용우무선통신적신형관대선전첩편천선，통과대칭선전천선적구형복사첩편，천선적대관득이현저확전.토론료첩편선전각도급기타결구삼수대천선대관적영향.위료험증해설계적유효성，대소설계적천선원형진행료실제제작화측시.측시결과표명，소설계천선적조항대관(10 dB회파손모)가체6.97 GHz (2.29~9.26 GHz)，상대대관약위120.7%，저일대관접근전통교차단겁자천선대관적량배.차외，해천선재정개공작빈솔범위내구유교호적전향복사특성화증익수평.
A novel broadband rotated-patch antenna for wireless communication applications is proposed.By rotating the rectangular patches symmetrically, the bandwidth of the antenna can be significantly enhanced.Especially,the effect of the rotating angle and other geometry parameters on the bandwidth has been studied in detail.An antenna prototype is then fabricated and measured to verify the effectiveness of this design.The measured results indicate that the proposed antenna can achieve an impedance bandwidth(10 dB return loss) as wide as 6.97 GHz (2.29~ 9.26 GHz) or the relative bandwidth is about 120.7%,which is nearly two times what the corresponding conventional cross monopole antenna does.Also relatively good omnidirectional radiation performance and antenna gain over the whole frequency range have been achieved.