一种小型化宽带双频贴片天线的设计

提出了一种基于U 形槽贴片天线设计的小型化宽带双频天线。采用基于有限元的商用软件对天线的电气特性进 行仿真和设计，制作了实验模型并进行测试，测试结果同仿真结果相吻合。结果表明，天线在824MHz~960MHz 频段和 1710MHz ~2170MHz 频段上的反射损耗均小于-10dB，相对带宽分别达到15%和24%，并且其尺寸远小于普通贴片天线。 所设计的天线可以作宽带双频天线应用于无线通信系统中。

Design of a Compact Wideband Dual-frequency Patch Antenna

A compact wideband dual-frequency patch antenna based on the U-shaped patch antenna is presented in this paper. The proposed antenna was simulated and designed by using an Ansoft HFSS 11.0 (high frequency structure simulator 11.0) based on FEM.. The prototype of the antenna is constructed and tested, shown good agreement with simulated results. The results show that the return loss covering the two impedance bands (824~960MHz and 1710~2170MHz ) is below ?10 dB, and the relative bandwidth is 15% and 23% respectively, and the size of antenna is smaller than normal patch antenna. The proposed antenna can be widely used in the wireless communication system.