合肥工业大学学报(自然科学版)
閤肥工業大學學報(自然科學版)
합비공업대학학보(자연과학판)
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2015年
1期
65-68
,共4页
戴维%杨明武%左劲风
戴維%楊明武%左勁風
대유%양명무%좌경풍
微带阵列天线%缺陷地结构%互耦%插入损耗%回波损耗
微帶陣列天線%缺陷地結構%互耦%插入損耗%迴波損耗
미대진렬천선%결함지결구%호우%삽입손모%회파손모
microstrip array antenna%defected ground structure (DGS )%mutual coupling%insertion loss%return loss
文章根据经典的哑铃状缺陷地结构设计出一种新型缺陷地结构,用于改善紧凑型微带阵列天线阵元间的互耦。在谐振频率为2.45 GHz ,阵元间距为1/10自由空间波长的天线阵阵元间引入该结构,采用An‐soft HFSS进行仿真,比较加入缺陷地结构前后天线的各项参数,结果表明该结构使得表征阵元间互耦的参数 S12减小30 dB以上,有效地改善了阵元间的互耦。
文章根據經典的啞鈴狀缺陷地結構設計齣一種新型缺陷地結構,用于改善緊湊型微帶陣列天線陣元間的互耦。在諧振頻率為2.45 GHz ,陣元間距為1/10自由空間波長的天線陣陣元間引入該結構,採用An‐soft HFSS進行倣真,比較加入缺陷地結構前後天線的各項參數,結果錶明該結構使得錶徵陣元間互耦的參數 S12減小30 dB以上,有效地改善瞭陣元間的互耦。
문장근거경전적아령상결함지결구설계출일충신형결함지결구,용우개선긴주형미대진렬천선진원간적호우。재해진빈솔위2.45 GHz ,진원간거위1/10자유공간파장적천선진진원간인입해결구,채용An‐soft HFSS진행방진,비교가입결함지결구전후천선적각항삼수,결과표명해결구사득표정진원간호우적삼수 S12감소30 dB이상,유효지개선료진원간적호우。
In this paper ,a novel defected ground structure (DGS ) is proposed based on classical dumbbell‐shaped DGS for the suppression of the mutual coupling between closely‐spaced microstrip patch array anten‐nas .The structure is etched on the ground between two one‐tenth wavelength spaced patch antennas with a resonant frequency of 2.45 GHz .Through Ansoft HFSS simulation testing ,the performance of the antenna arrays with and without DGS is compared and the result indicates that the DGS structure is effective in reduc‐ing mutual coupling with a reduction of the relevant parameter S12 by over 30 dB .