天线学报  >> Vol. 2 No. 4 (December 2013)

枝节状多频段微带天线的谐振机制与设计方法研究
The Resonance Principle and Designing Method of Multi-Bands Microstrip Antenna with Branch Shape

DOI: 10.12677/JA.2013.24005, PDF, HTML,  被引量 下载: 2,516  浏览: 8,283  国家自然科学基金支持

作者: 彭希亮, 魏兴昌:浙江大学信息与电子工程学系,杭州

关键词: 多频段表面电流带外衰减 Multi-Bands Surface Currents Attenuation in Stopband

摘要: 本文首先设计了一个三枝节微带天线,并给出了该天线的S11参数的仿真结果与实测结果。而后,采用了参数扫描的方法来分析天线相应结构的尺寸大小对谐振频率的影响,然后通过分析各个谐振频率处的天线表面电流分布,从理论上阐明参数扫描结果。为了获得更大的带外衰减,本文在三枝节天线的基础上又设计了一个四枝节天线,然后仿真并测试了其S11参数。接下来,本文设计了一个尺寸减小的四枝节天线,并分析了增强相应频段带宽的原理。最后,本文总结了设计该类枝节状天线的一般方法。
Abstract:  In this paper, a kind of three-bands microstrip antenna composed of three branches was designed. Also, the S11 parameters of the antenna were simulated and measured. After that, the relationship between the dimension of antenna and the resonance frequency of antenna was analyzed by scanning the dimension parameters. At the same time, the results of dimension scanning were explained by analyzing the distribution of surface currents on the antenna. In order to gain larger attenuation in stopband than the antenna with three branches, an antenna composed of four branches was designed and its S11 parameters were simulated and measured. Then, an antenna occupying smaller dimension than the above antennas was proposed and the principle of widening its frequency bandwidth was stated. In the end, the general method of designing this kind of antenna was concluded.

文章引用: 彭希亮, 魏兴昌. 枝节状多频段微带天线的谐振机制与设计方法研究[J]. 天线学报, 2013, 2(4): 21-26. http://dx.doi.org/10.12677/JA.2013.24005

参考文献

[1] Ban, Y.-L., Chen, J.-H., Yang, S., Li, J.L.W., et al. (2013) Low- profile printed octa-band LTE/WWAN mobile phone antenna using embedded parallel resonant structure. IEEE Transactions on Antennas and Propagation, 61, 3889-3894.
[2] Le Bolter, F. and Louzir, A. (2001) Multi-band annular slot antenna for WLAN applications. Eleventh International Conference on Antennas and Propagation, 2, 529-532.
[3] Dai, C.D., Wu, D.L. and Wu, Y.J. (2013) Design of an internal multi-band loop antenna for multiple mobile handset operations. IEEE International Wireless Symposium (IWS), 14-18 April 2013, 1-4.
[4] Rowell, C. and Lam, E.Y. (2012) Mobile-phone antenna design. IEEE Antennas and Propagation Magazine, 54, 14-34.
[5] Razavizadeh, S.M. (2012) High gain dipole elliptic-shaped patch antenna for dual band WLAN2.4/5GHz applications. IEEE Radio and Wireless Symposium (RWS), 15-18 January 2012, 275-278.
[6] 钟顺时 (1991) 微带天线理论与应用. 西安电子科技大学出版社, 西安, 152-153.
[7] 钟顺时 (1991) 微带天线理论与应用. 西安电子科技大学出版社, 西安, 13-15.