新型的宽带手机天线设计

随着现代无线通信的发展,小型化、宽带化已经成为移动通信终端的发展趋势.针对宽带化发展的需求,提出一种新型的低剖面宽带手机天线设计.该方案通过在手机天线对立边的地平面上加载寄生单元,达到扩展带宽的目的.与传统的天线相比,在GSM850和DCS1800频段,该设计天线的相对带宽分别提高了100％和43％.对天线进行加工测试,回波损耗为-6 dB的带宽覆盖了GSM850和GSM1800频段,性能指标满足手机通信技术要求.

New Broadband Mobile Phone Antenna Design

With the development of modern wireless communication, miniaturization and broadband has become the trend of development of the mobile communication terminal. According to this trend, this paper proposes a new low profile broadband mobile phone antenna design. This technique proposes to load a grounded parasitic element at the opposite edge of the handset antenna location to extend bandwidth. Compared with the conventional antenna, the bandwidth of proposed antenna increases by 100% and 43% in GSM850 and DCS1800 bands respectively. The proposed antenna is manufactured and the tested result shows that return loss of -6dB bandwidth covers the GSM850 and GSM1800 bands which can meet the requirements of mobile communications.