摘要
矩形微带天线是由导体薄片粘贴在背面有导体接地的介质基片上形成的天线,它利用微带线或同轴线馈电,在导体贴片与接地板之间激励起辐射电磁场,并通过贴片四周与接地板之间的缝隙向外辐射,因此微带线天线可以看作为一种缝隙天线,利用传输线模型求它的远区场时,首先对微带天线进行假设,求出边缝上的等效磁流,由等效磁流求出矢量电位,从而求出远区的辐射场和方向图。
The rectangular microstrip antenna is one glued by the thin slice of conductor to the medium substrate forms with the conductor to earth on the back, It feed by the Microstrip or the coaxial cable, the radiation field is drove between the piece and the ground plate in the conductor, through the piece all side with the ground plate between slit to the external radiation, therefore the Microstrip antenna may regard as one kind of slot antenna, when looking for its far field using the transmission line model, we can first carriy on the supposition to the microstrip antennas side, extract equivalent magnetic current on the side of it, find the vector electric potential by the equivalent magnetic current, and get the far the radiation field and the directional diagram,
出处
《微计算机信息》
北大核心
2007年第01S期303-304,共2页
Control & Automation
基金
国家自然科学基金(基金编号:60571064)
关键词
微带天线
等效磁流
矢量电位
辐射场
microstrip antennas,equivalent magnetic current,vector electric potential,radiation field
