Dual‐Frequency and Dual‐Mode Circular Patch Antennas Based on Epsilon‐Negative Transmission Line
Dual‐Frequency and Dual‐Mode Circular Patch Antennas Based on Epsilon‐Negative Transmission Line
复制标题
DOI：
10.1002/mop.27883
复制
发表时间：
2013-10
影响因子：
1.5
通讯作者：
Q. Hou;H. Tang;Yahong Liu;Xiaopeng Zhao
中科院分区：
文献类型：
--
作者：
Q. Hou;H. Tang;Yahong Liu;Xiaopeng Zhao
研究了基于负极化（ENG）传输线的双频双模圆形贴片天线。通过输入阻抗匹配，可以在两个不同的频率上激励具有全向辐射方向图的TM 01模和具有定向辐射方向图的TM 11模，从而实现双频双模工作。与传统的双频或双模贴片天线相比，新设计的天线只需要一个贴片和一个馈电。更重要的是，所提出的天线的全向模式可以在比定向模式更低的频率下被激励，并且两个模式的频率比可以通过改变ENG单元的数量来调谐。所提出的天线的性能进行了研究数值和实验。实测结果与模拟结果吻合较好。© 2013威利期刊公司.微波光学技术快报55：2393-2398，2013
Dual‐frequency and dual‐mode circular patch antennas based on epsilon‐negative (ENG) transmission line have been investigated. By input impedance matching, the TM01 mode with omnidirectional radiation pattern and TM11 mode with directional radiation pattern can be excited at two separate frequencies, and then the dual‐frequency and dual‐mode operation is achieved. Compared with the conventional dual‐frequency or dual‐mode patch antennas, the new designed antenna only need one patch and one feed. More important, the omnidirectional mode of proposed antenna can be excited at lower frequency than directional mode, and the frequency ratio of the two modes can be tuned by changing the number of the ENG unit cell. The performances of the proposed antennas are studied numerically and experimentally. The measured results are in good agreement with the simulated ones. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2393–2398, 2013