【摘要】 本文提出一种结构简单的、宽带双频、共面波导馈电的单极子天线,本天线采用50欧姆的SMA接头对其进行馈电,印刷集成在一个22×35mm2的介质基板上,覆盖了无线局域网(WLAN)的2.4-,5.2-,5.8-GHz三个频带,并且具有良好的阻抗匹配特性。此天线的低谐振模式在VSWR<2时的阻抗带宽为320MHz(2.38到2.70GHz),满足了2.4-GHz WLAN工作频段(2.400-2.484GHz);此外,天线的高谐振模式在VSWR<2时的阻抗带宽为2.480GHz(3.580到6.060GHz),包含了5.2-GHz的HIPERLAN频段(5.150到5.350GHz)和5.8-GHz的WLAN频段(5.725到5.852GHz)。更多还原

【Abstract】 A novel and simple coplanar waveguide(CPW)-fed monopole antenna with wideband dual-frequency is proposed in this paper.The proposed antenna printed and integrated on a small region of a microwave substrate has a compact size of 22×35mm2.This antenna,fed by using a 50Ω SMA connector,can generate two separate resonant frequency bands,which cover the 2.4-,5.2-,and 5.8-GHz WLAN bands.This proposed antenna could present good impedance matching performance.The lower frequency mode of the antenna has an impedance bandwidth(at VSWR<2) of about 320MHz(2.38~2.70GHz),which covers the required bandwidth for 2.4-GHz WLAN band(2.400~2.484 MHz);on the other band,the upper frequency mode has a bandwidth of about 2.480GHz(3.580~6.060GHz),covering the HIPERLAN band(5.150~5.350GHz) and 5.8-GHz WLAN band(5.725~5.852 GHz).更多还原