摘要
设计了一种新型单馈点双频平面倒F手机天线(PIFA),用时域有限差分方法(FDTD)计算了该天线的电流分布和辐射方向图,以验证设计原理。该天线可用于GSM和DCS1800两个系统,中心工作频率分别为0.94GHz和1.8GHz,反射损失小于-10dB的阻抗带宽可达到10％以上。通过简单调节天线的两个参数,天线两个频段的中心工作频率独立可调,来消除手机设计制造误差对天线工作频率的影响。
The design of a novel single-feed dual-band planar inverted-F antenna (PIFA) is presented. Current distribution and radiation patterns are calculated by the finite-difference time-domain (FDTD) method to verify the design theory. This antenna operating at 0.94GHz and l.8GHz bands is suitable for GSM and DCS1800 systems. The impedance bandwidths for -10dB return loss in the two bands are greater than 10%. By simply changing two parameters of the antenna,two centre operating frequencies can be tuned independently to remove the effect caused by the error of handset design and production.
出处
《通信学报》
EI
CSCD
北大核心
2003年第8期101-107,共7页
Journal on Communications
