摘要
本文提出了一种由缝隙天线和印刷偶极子组成的新型宽带补偿型天线。缝隙天线与印刷偶极子两者互补,拓展了组合天线的阻抗带宽,天线可以工作在1700~2700MHz(S11<-10d B),相对带宽达到45%。反射板的设计进一步提升了天线的单向辐射特性,工作频带范围内,天线平均增益达到8d B±0.5d B,前后比大于25d B。反射板两端向上翻折,优化了H面3d B波束宽度,带内波束宽度为65°±5°。仿真与实测结果符合较好,验证了该方案的可行性。
In this paper, a complementary antenna based on slot and printed dipole is proposed. The slot and the printed dipole complements each other, increasing the bandwidth of the antenna. The antenna could work between 1700 MHz and 2700MHz(S11<-10 d B), making the relative bandwidth more than 45%. The design of the reflector, increases the unidirectional radiation further. The average gain is 8d B±0.5d B and FBR is greater than 25 d B in the whole bandwidth. The fold of the reflector optimizes the HPBW of H Plane and it is 65°±5° in the whole bandwidth. The simulation and experimental results matches well, which verifies the idea.
引文
[1]Sung,Y."Bandwidth Enhancement of a Microstrip Line-Fed Printed Wide-Slot Antenna With a Parasitic Center Patch."IEEE Transactions on Antennas&Propagation 60.4(2012):1712-1716.
[2]Lu,Xiao‐Peng,and Y.Li."Novel broadband printed dipole."Microwave&Optical Technology Letters48.10(2006):1996-1998.
[3]Yeo J,Lee Y,Mittra R.Wideband slot antennas for wireless communications[J].Iee Proceedings Microwaves Antennas&Propagation,2004,151(4):351-356.
[4]Zhang F,Hua G,Zhou H,et al.An elliptic cavity-backed cross slot antenna[C]//Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications.IEEE,2012:1-3.
[5]Chlavin A.A new antenna feed having equal E-and H-plane patterns[J].Antennas and Propagation,Transactions of the IRE Professional Group on,1954,2(3):113-119.
[6]Wong H,Mak K,Luk K.Wideband Shorted Bowtie Patch Antenna With Electric Dipole[J].IEEE Transactions on Antennas and Propagation,2008,56(7):2098-2101.
[7]Li M,Hua G,Yang K.Investigation on complementary antenna based on bow-tie shaped meander slot[C]//Antennas and Propagation.IEEE,2015:601-602.
[8]Roberts,Willmar K."A New Wide-Band Balun."Proceedings of the Ire 45.12(1957):1628-1631.