一种基于倒“T”形贴片结构的WLAN天线

A Microstrip Antenna Using Inverted T-shaped Patch for WLAN Application

提出了一种基体背面有电磁带隙结构的倒“T”形双频微带天线。研究发现该天线具有双频带特性,其双频工作频率分别为2.4 GHz和5.2 GHz,相应的带宽为805 MHz （2.099~2.944 GHz）和831 MHz （4.568~5.409 GHz）,增益达到3.1 dBi。仿真和测试结果基本吻合,表明该天线可以很好地满足WLAN工作频段标准要求,具有很好的应用前景。

An inverted T-shaped patch microstrip antenna using electromagnetic band gap（ EBG） structure on the ground plane is presented. The measured 10 dB bandwidth for return loss reaches 805 MHz （2. 099~2. 944 GHz） and 831 MHz （4. 568~5. 409 GHz）, which covers both the 2. 4 GHz/5. 2 GHz WLAN （Wireless Local Aerea Network） bands. Furthermore, the 3. 1 dBi of relative high gain is achieved. The measured data is in good agreement with the simulated. The study indicates that the proposed antenna can satisfy the WLAN band standards and has a good prospect of application.