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)。
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 50 Ω 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）.
出处
《电子技术（上海）》
2012年第11期76-78,共3页
Electronic Technology
