CAJ | 학술논문

一种新型阵列天线采用多层印制板形式、通过寄生贴片加多级阻抗匹配实现了宽频带工作，对矩形贴片相互垂直的两条边采用“H”缝耦合及微带线边馈实现了双极化。实验结果表明，双层带线馈电网络很大程度上解决了馈电网络间耦合问题，提高了端口隔离度。天线带宽约26.5%，实测增益19 dB左右，隔离度大于37 dB。该天线剖面低、质量小，可作为单元组成更大规模的阵列。
일충신형진렬천선채용다층인제판형식、통과기생첩편가다급조항필배실현료관빈대공작，대구형첩편상호수직적량조변채용“H”봉우합급미대선변궤실현료쌍겁화。실험결과표명，쌍층대선궤전망락흔대정도상해결료궤전망락간우합문제，제고료단구격리도。천선대관약26.5%，실측증익19 dB좌우，격리도대우37 dB。해천선부면저、질량소，가작위단원조성경대규모적진렬。
A novel dual-polarized multilayer microstrip antenna array with high isolation and wide band was proposed. The wide band of the antenna was realized by adding parasitic patch and multilevel impedance matching. The dual linear polarization was realized by“H”shape aperture coupling and microstrip line feeding. Research results show that two layer stripline feeding networks solve the coupling problem between networks and improve the isolation. The bandwidth of the antenna is about 26.5%, the gain is about 19 dB, and the isolation is above 37 dB. This antenna has thin profile and light weight, and can be used as sub array to fabricate much bigger dual-polarized array.