CAJ | 학술논문

为了避免如WiMax和WLAN等窄带通信系统对超宽带通信系统的影响，该文提出一种具有双陷波特性的超宽带天线。该天线采用圆形贴片作为辐射单元，通过在贴片和接地板上分别开圆弧状的H形槽和L形槽来实现双陷波特性。天线在3.1~10.6 GHz的超宽带频段内能够有效地工作并抑制两种不同的窄带通信系统的干扰。同时圆弧状 H 形槽的参数研究表明，这种开槽结构能够以槽参数组合的形式更有效地控制陷波中心频率。实测和仿真结果吻合，该天线实现了良好的陷波功能，在工作频段内有良好的辐射方向特性。
위료피면여WiMax화WLAN등착대통신계통대초관대통신계통적영향，해문제출일충구유쌍함파특성적초관대천선。해천선채용원형첩편작위복사단원，통과재첩편화접지판상분별개원호상적H형조화L형조래실현쌍함파특성。천선재3.1~10.6 GHz적초관대빈단내능구유효지공작병억제량충불동적착대통신계통적간우。동시원호상 H 형조적삼수연구표명，저충개조결구능구이조삼수조합적형식경유효지공제함파중심빈솔。실측화방진결과문합，해천선실현료량호적함파공능，재공작빈단내유량호적복사방향특성。
A dual band-notched UltraWide Band (UWB) antenna is presented to avoid the interference of service that work in the UWB band such as WiMax and WLAN applications. The dual band-notched characteristics are achieved by employing an arc H-shaped slot on the radiating patch and etching a couple of L-shaped slots on the ground plane. The proposed antenna operates on the ultra wide band (3.1~10.6 GHz) efficiently, except for the bandwidth of 3.3~3.6 GHz for WiMax application and 5.1~5.9 GHz for WLAN application. The parametric study of the arc H-shaped slot shows that this structure enables centre frequency of notched band to be conveniently tuned. Simulated and measured results show that the proposed antenna provides excellent band-notched function on the rejectband and has nearly omnidirectional radiation patterns on the passband.