The ultra-wideband unmanned aerial vehicle airborne direction-finding antenna comprises a dielectric substrate, dipole oscillators, balance double lines, a radio frequency coaxial line and a connecting piece, the dipole oscillators are arranged on the front face and the back face of the dielectric substrate in a staggered and inserted mode, the balance double lines are arranged on the front face and the back face of the dielectric substrate, and the radio frequency coaxial line is arranged on the radio frequency coaxial line. The antenna comprises a dielectric substrate, a dipole oscillator and a radio frequency coaxial line, the dipole oscillator carries out feeding through balance double lines, the radio frequency coaxial line is arranged on the front face of the dielectric substrate, and the balance double lines on the front face and the back face of the dielectric substrate are connected through the radio frequency coaxial line. The impedance bandwidth and the directional diagram bandwidth can be greatly expanded; in practical application, due to the fact that the working frequency band is wide, the number of antennas can be greatly reduced, and the problem of electromagnetic compatibility can be reasonably and efficiently solved. Besides, the dipole oscillators on the front face of the dielectric substrate and the dipole oscillators on the back face of the dielectric substrate are arranged in a staggered and interspersed mode, the detection precision of the antenna is greatly improved, the bandwidth can be further expanded by adopting the structure that the oscillators are tightly arranged, meanwhile, the size of the antenna can be reduced, and the antenna has good miniaturization and ultra-wideband characteristics.
本发明公开了一种超宽带无人机机载测向天线及具有该天线的无人机,包括介质基板、偶极子振子、平衡双线、射频同轴线和连接件,偶极子振子交错穿插排列在介质基板的正面和背面,平衡双线设置在介质基板的正面和背面,偶极子振子通过平衡双线进行馈电,射频同轴线设置在介质基板的正面,介质基板正面和背面的平衡双线通过射频同轴线连接,本发明提出了一种超宽带无人机机载测向天线,其结构具有自相似性,利用其非频变特性,可以大大拓宽阻抗带宽和方向图带宽;在实际应用时,由于工作频带很宽,能使天线数量大大减少,而且还能够合理高效地解决电磁兼容的问题;此外,介质基板正面的偶极子振子和背面的偶极子振子交错穿插排列,大大提高了天线的探测精度,采用紧密排布振子的结构,可以进一步扩展带宽,同时使天线尺寸也可以缩小,使天线具有很好的小型化以及超宽带特性。
Ultra-wideband unmanned aerial vehicle airborne direction finding antenna and unmanned aerial vehicle with antenna
一种超宽带无人机机载测向天线及具有该天线的无人机
2024-11-22
Patent
Electronic Resource
Chinese
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