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双频微带天线的设计

Dual-frequency Microstrip Antenna Design

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【作者】 罗建罗正祥羊恺马景民

【Author】 Luo Jiang Luo Zhengxiang Yang Kai Ma Jiangming (School of Photoelectric Information , University of Electronic Science and Technology of China, Chengdu 610054)

【机构】 电子科技大学光电信息学院

【摘要】 为了适应现代双频通信系统的要求,双频天线必须具有小尺寸和频率易调的特点。通过在H形微带天线的辐射边附近采用U形缝隙加载,在单层微带天线上实现了双频效果。和常规的双频微带天线相比,该天线的尺寸可以大大减小。通过改变天线的尺寸参数,高频段和低频段可以很容易的调节,本设计中得到的频率比范围是1.716---2.363。该天线在两个频段有相同的极化平面和较宽的辐射波束。

【Abstract】 To satisfy requirements of modern dual-frequency communication systems.the antenna should have the characteristics of compact size and easy frequencies tuning.A novel compact single layer dual-frequency microstrip antenna is designed in this paper,which used an H—shaped geometry with four U—shaped slots embedded near the radiation edges.This antenna can realize a significant size reduction comparing to regular dual-frequency microstrip patch antenna.The lower and higher resonant frequencies can be tuned easily by changing the design parameter,and a various frequency ratios(1.71 6~ 2.363)can be obtained in the design.For the two operating frequencies of the proposed antenna,the same polarization planes and broadside radiation patterns are obtained.

  • 【会议录名称】 2009年全国天线年会论文集(上)
  • 【会议名称】2009年全国天线年会
  • 【会议时间】2009-10-13
  • 【会议地点】中国四川成都
  • 【分类号】TN822
  • 【主办单位】中国电子学会
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