摘要
在简单矩形微带天线的基础上，通过加一容性馈电贴片设计了一种应用于WLAN的微带天线。通过在矩形微带天线对角线馈电的方式实现了双频；容性馈电贴片的引入，抵消了因馈电探针过长而使天线输入阻抗呈感性的影响，从而展宽了天线的阻抗带宽。仿真结果表明，当回波损耗s11〈-10dB时，天线在2．44GHz处带宽为120MHz（2．38～2．50GHz），增益为5．7dB；在5．42GHz处带宽为1GHz（5．12～6．12GHz），增益为8．4dB。该天线全面覆盖了WLAN所要求的频段，且性能良好，结构简单。
Based on simple rectangular microstrip antenna structure, a microstrip antenna for WLAN（Wireless Local Area Network） with capacitive feed was proposed. The antenna attained dual-band function by feeding at the diagonal; the added capacitive feed offsets the inductive effects ＆the antenna input impedance due to the long probe, thereby broadened the impedance bandwidth. Simulation results show that when the return loss S11〈-10 dB, the bandwidth is 120 MHz（2.38 - 2.50 GHz） and the gain is 5.7 dB at 2.44 GHz, while the bandwidth is 1 GHz（5.12 - 6.12 GHz） and the gain is 8.4 dB at 5.42 GHz. The antenna completely cover the required WLAN bands and has a good performance as well as a simple structure.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2014年第3期58-61,共4页
Electronic Components And Materials
基金
国家自然科学基金资助项目(No.41004059)
