手机天线在整机环境下的效率分析与仿真-易迪拓培训.PDF

手机天线在整机环境下的效率分析与仿真 1 1 1 2 杨振超 聂在平 宗显政 班永灵 ( 电子科技大学电子工程学院，成都 610054)1 (深圳华为通信技术有限公司，深圳 518129)2 摘 要：本文建立了整机环境下的天线等效电路；该等效电路能够简单清晰地被用来分析天线的效率及其他 指标。文章讨论了天线在整机环境下效率损耗的各种来源以及相关的改进措施。通过在 SEMCAD 下仿真实 际的手机天线模型，证实了由等效电路分析得出的结论。最后对实测与仿真在效率上的差异进行了分析。 关键词：手机天线，辐射效率，等效电路，手机仿真，SEMCAD Efficiency Analysis and Simulation of Mobile Phone Antennas in the Whole Device Environment 1 1 1 2 YANG zhenchao , NIE zaiping , ZONE xianzheng ，BAN yongling 1 (School of Electronic Engineering, University of Electronic Technology and Science of China, Chengdu 610054) 2 (Shenzhen Huawei Communication Technology Company Ltd., Shenzhen 518129) Abstract: In this paper, an equivalent circuit model of antennas under the whole device circumstance is established, which can help analyzing the efficiency and other performance of antennas easily and clearly. Then the various sources causing the deterioration of the efficiency of antennas in the whole device environment and their relevance measures for improvement are discussed. The conclusion from the analysis of the equivalent circuit is confirmed by simulating practical mobile phone model in SEMCAD. Finally, the difference in the antenna efficiency between measurement and simulation is analyzed. Keywords: Mobile phone antennas; Radiation efficiency; Equivalent circuit; Mobile phone simulation; SEMCAD 1 引言 能，从而缩短研发的周期。合理地简化模型并赋予 合适的电磁参数以避免繁复的计算，同时保证仿真 得到较为准确的结果，成为仿真手机天线中的关键 移动通信的不断发展对终端天线