| 摘要: |
| 设计了一款新颖的基于互补开口谐振环结构和条形缝隙的贴片天线。通过在金属贴片上蚀刻圆环形互补开口谐振环结构，并且在金属接地板上蚀刻条形缝隙完成天线的人工电磁媒质结构设计，它们和介质板共同作用将天线工作频段明显扩宽到1.7~2.98 GHz和3.99~5.34 GHz。该天线仅使用单层双面覆铜板即可完成加工，具有结构简单的特点。同时，天线的电尺寸仅有0.408λ0×0.408λ0×0.008 6λ0(在天线最低工作频率1.7 GHz处)，且最大增益为6.04 dBi；可以同时兼容中国的第四代(4G)移动通信的所有频段(1.88~2.66 GHz)、WiFi频段(2.4~2.484 GHz)和微波存取全球互通(WiMAX)频段(2.5~2.69 GHz)。 |
| 关键词: 宽带天线 贴片天线 互补开口谐振环 条形缝隙 人工电磁媒质 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目(61505035);教育部留学回国人员科研启动基金资助项目;广东省高等教育教学改革资助项目 |
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| Design of a novel broadband metamaterial antenna compatible with 4G/WiFi/WiMAX |
| LI Xueshi,CAI Shuting,YU Jinquan,LIN Fumin |
| () |
| Abstract: |
| A patch antenna is designed based on the structures of complementary split-ring-resonators(CSRR) and strip-line gaps. The metamaterial structure is constructed via etching CSRR structures with circular shapes and employing strip-line gaps on the ground. They cooperate with the dielectric slab to significantly extend the antenna’s operating frequency bands to 1.7~2.98 GHz and 3.99~5.34 GHz. The antenna can be fabricated utilizing only one single-layer substrate with both sides covered with copper,whose structure is pretty simple. The antenna has an electrical dimension of only 0.408λ0×0.408λ0×0.008 6λ0(at the lowest operating frequency of 1.7 GHz of the antenna) with a peak gain of 6.04 dBi. It is compatible with multiple commercial bands at the same time including all the bands of the fourth generation(4G) of Chinese mobile communication(1.88~2.66 GHz),WiFi(2.4~2.484 GHz),and the worldwide interoperability for microwave access(WiMAX)(2.5~2.69 GHz). |
| Key words: broadband antenna patch antenna complementary split-ring-resonators strip-line gaps metamaterial |
