电子科技2024，Vol.37Issue(4)：25-29,5.DOI:10.16180/j.cnki.issn1007-7820.2024.04.004
双频一体化超宽带探地雷达天线设计
Design of Dual-Frequency Integrated Ultra-Wideband Ground Penetrating Radar Antenna
摘要
Abstract
In view of the disadvantages of time consuming and low efficiency caused by single frequency band of Ground Penetrating Radar(GPR)products,a dual-frequency integrated composite array antenna with center fre-quency of 400 MHz and 1 000 MHz and bandwidth of 200～1 500 MHz is designed and implemented,and is applied in Ultra-Wide Band(UWB)GPR system.The array antenna consists of three butterfly antennas with a center fre-quency of 400 MHz and six butterfly antennas with a center frequency of 1 000 MHz,and has the capability of simul-taneous detection of dual frequency bands,which can realize the detection results of two different frequency bands in one survey line,overcome the problem of repeated detection of different frequencies of traditional GPR and enhance the practicability of GPR system.The proposed dual-frequency integrated GPR antenna has the characteristics of ul-tra-wideband,high gain and narrow beam.Its relative bandwidth is 153%,the maximum peak gain of 17.6 dBi is achieved in the whole bandwidth,and the narrowest half-power beam width is 7.6°.It provides a new antenna scheme for high resolution and high efficiency GPR applications.关键词
探地雷达/蝶形天线/阵列天线/超宽带/高增益/双频/高分辨率/高效率Key words
ground penetrating radar/butterfly antenna/array antenna/ultra-wide band/high gain/dual fre-quency/high resolution/high efficiency分类
信息技术与安全科学引用本文复制引用
林翔宇,曾卫华..双频一体化超宽带探地雷达天线设计[J].电子科技,2024,37(4):25-29,5.基金项目
国家自然科学基金(41974092)National Natural Science Foundation of China(41974092) （41974092）
