CAJ | 학술논문

针对需要安装在金属平台上的天线应用,提出了一种具有定向辐射特性的新型多频段背腔式半模基片集成波导缝隙天线。利用半模基片集成波导谐振腔的多模式特性实现了该天线多频段工作,通过在谐振腔的金属顶面蚀刻弯折形状的缝隙实现对外辐射,并可以通过调整弯折缝隙尺寸参数来减小天线尺寸。仿真和测试结果表明,该天线能同时工作在5.7/10.7/11.9/12.5/13.1 GHz,且在这5个频段的最低增益大于6.7 dBi。天线具有便于和平面电路集成、体积小、结构简单、成本低等优点,具有一定的工程应用价值。
침대수요안장재금속평태상적천선응용,제출료일충구유정향복사특성적신형다빈단배강식반모기편집성파도봉극천선。이용반모기편집성파도해진강적다모식특성실현료해천선다빈단공작,통과재해진강적금속정면식각만절형상적봉극실현대외복사,병가이통과조정만절봉극척촌삼수래감소천선척촌。방진화측시결과표명,해천선능동시공작재5.7/10.7/11.9/12.5/13.1 GHz,차재저5개빈단적최저증익대우6.7 dBi。천선구유편우화평면전로집성、체적소、결구간단、성본저등우점,구유일정적공정응용개치。
In order to solve the problem of mounting antennas on the metal platform,this paper presents a novel multiband half-mode substrate integrated waveguide( HMSIW) cavity-backed slot antenna with di-rectional radiation characteristics. It uses the multimode characteristics of HMSIW resonant cavity to realize multiband characteristics of the antenna, and a meandered slot is etched at its conductor plane to realize radiation. The size of the antenna can be reduced by changing parameters of the meandered slot. Simula-tion and test results show that the antenna can operate at 5 . 7/10 . 7/11 . 9/12 . 5/13 . 1 GHz with the gain o-ver 6. 7 dBi in the observing frequency bands. The antenna is featured by easy to be integrated with planar circuit, small size, simple structure, and low cost,and it has engineering application value.