摘要
研制了一种由导线栅构成的圆锥单极子天线.采用矩量法来求电场积分方程,天线表面上的感应电流分布采用正弦插值基函数来展开,该基函数对于长线结构具有较快的收敛性.分析了天线的电压驻波比和增益随着线栅根数以及天线高度等参数变化的特性.设计了一副在6个倍频的频带内均可满足电压驻波比小于2 0,增益大于4 5dB的全向宽带小型化圆锥单极天线,理论计算结果与测量结果吻合良好.
The conical monopole antenna composed of equallyspaced wire radiating elements is analyzed. The moment method is used to solve the electric field integral equation (EFIE). The current on the antenna is expanded in a sum of sinusoidal interpolation basis functions, which have been shown to provide rapid solution convergence, particularly on longer wires. The characteristics of VSWR and the gain of the antennas with different numbers of wires and different heights are analyzed. Finally, a 6∶1 bandwidth, omnidirectional, miniature conical monopole antenna, with the VSWR less than 20 and the gain greater than 45, is designed. The calculated data is in good agreement with the experimental data.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2002年第6期756-759,共4页
Journal of Xidian University
基金
国家部委预研项目资助(410010202
401060302)