摘要
超宽带天线是天线系统和的重要组成部分。在传统对数周期天线的基础上,借鉴了微带天线的优点,利用LTCC技术设计了一种带状线馈电的超宽带印刷对数周期天线。对长振子臂采用弯折技术以及L型加载来缩短天线尺寸,同时通过在长振子臂与集合线之间加载一系列的匹配枝节来达到阻抗匹配,使低频端的驻波比减小。测试结果表明在1～12GHz的阻抗带宽内,驻波比基本在2.5以下,频段内增益曲线平滑保持在5dB以上,性能稳定,具有良好的宽带特性。研究工作为该天线的实际应用提供了技术参考。
The ultra wide band（UWB）antenna is a key component of wide band electromagnetic system Based on the traditional log periodic antenna,adopts the advantages of microstrip antenna,the design of a ultra wideband printed log periodic antenna based on a stripline feed in use of LTCC technology,in the long oscillator end using the SMA head feed.In order to reduce the overall size of the antenna,the long vibrator arm by bending technology and L type loading to reduce the antenna size,at the same time by loading between long vibrator arm and set a series of line matching branches to achieve impedance matching,so as to decrease VSWR in lower frequency.The test results show that the VSWR is less than 2.5,In the frequency band,the gain curve is smoother than 5 dB,the working performance is stable,and the broadband characteristics is better in 1—12 GHz frequency band.The research work of this paper provides a technical reference for the practical application of this antenna.
作者
杜国伟
胡明春
刘明罡
Du Guowei;Hu Mingchun;Liu Minggang(NanjingResearch Institute of Electronics Technology, Nanjing 210039, China)
出处
《电子测量技术》
2018年第1期39-43,共5页
Electronic Measurement Technology
关键词
印刷对数周期天线
馈电结构
阻抗匹配
LTCC技术
printed log-periodic dipole array
feed-structure
impedance matching
LTCC-technology
