六频段4G手机天线设计  

Design of the Six-Band Antenna for 4G Mobile Phones

作　　者：常海星[1] 李民权[1] 何宏庆[1] 朱元[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,合肥230039

出　　处：《微波学报》2016年第2期68-71,76,共5页Journal of Microwaves

基　　金：国家自然科学基金(51477001)

摘　　要：设计了一款应用于4G手机终端新型六频段天线。采用倒L型、U型、S型辐射枝节获得多频特性;短路加载技术让低于谐振频率的点达到阻抗匹配;耦合馈电方式代替传统的直接馈电以减小阻抗波动,获得较宽频带。该天线尺寸仅占70 mm×16 mm×1.5 mm,能够覆盖手机通信的6个频段:LTE700,CDMA/GSM850,GSM900,DCS1800,PCS1900,WCDMA/UMTS2100。测试结果表明,在工作频段内,散射参数S11≤-6d B,电压驻波比VSWR≤3,均达到工程要求的指标,验证了设计的可行性。A novel six-band PIFA antenna is proposed for 4G mobile terminals. In this design,inverted L-shaped,U-shaped and S-shaped radiation patches are used to achieve multi-frequency characteristics;the point that lower than the resonant frequency is achieved to impedance matching by shorted load technology;instead of the traditional direct feed,coupled feed can reduce the impedance shake well,and get a wider band. The antenna＇s size is only 70 mm×16 mm×1.5 mm,and this antenna can cover the six-band mobile communications：LTE700,CDMA/GSM850,GSM900,DCS1800,PCS1900,WCDMA/UMTS2100. The results show that in the working bands,S11 is less than or equal to-6 d B,VSWR is less than or equal to 3. The proposed antenna meets the engineering requirements,and its good performance verifies the feasibility of the design.

关 键 词：宽带 4G手机 内置天线 多频天线 

分 类 号：TN929.53[电子电信—通信与信息系统]