摘要
针对平面对称振子天线带宽较窄、辐射方向性较差等缺陷,使用寄生贴片加载技术,通过加载低频、高频寄生振子拓展天线的工作带宽,提高天线增益。测试结果表明,在VSWR小于2的情况下,该天线覆盖了800～1 040MHz和1 540～2 500MHz两个频段,相对阻抗带宽分别达到了26.1%和47.5%,2个频段内的最大增益分别为6.44dB和9.64dB。该天线覆盖了AMPS、GSM、DCS、PCS、UMTS和WLAN等频段且方向性稳定,具有广阔的应用前景。
Due to narrow bandwidth and poor radiation directivity of the symmetrical dipole antenna,the parasitic patch loading technology is used,the operating bandwidth is expanded and the antenna gain is improved by loading low-frequency and high-frequency parasitic dipole.The measure results show that the antenna is covering two frequency bands： 800~1 040 MHz and 1 540~2 500 MHz,the relative bandwidth is 26.1% and 47.5%,and the peak gain in two bands is 6.44 dB and 9.64 dB.The designed antenna is covering AMPS,GSM,DCS,PCS,UMTS and WLAN,and its radiated direction is stable.The application prospect is expansive.
出处
《桂林电子科技大学学报》
2013年第4期268-271,共4页
Journal of Guilin University of Electronic Technology
基金
广西自然科学基金(2010GXNSFDO13038)
关键词
对称振子
寄生贴片
宽频带
定向天线
symmetrical dipole
parasitic patch
wideband
beam antenna
