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首先分析了介质谐振天线单元的原理及其宽带、宽波束、小型化等优点,并给出了工程样机的实测结果。之后重点分析了采用介质谐振单元的卫星导航自适应阵列。仿真和实测结果表明,与同等面积的微带天线阵相比,该天线阵10°仰角增益提高2d B以上,增益不平度降低2d B;此外该天线阵有更好的阵间隔离度且在±80°波束范围内有更好的轴比。介质谐振天线及其自适应阵列的研制成功对导航天线及接收机的小型化发展有重要意义。
Firstly, the principle of dielectric resonant antenna unit and its advantages of wideband, wide beam and miniaturization are analyzed. The measured results of the prototype are given. After focusing on the use of media resonance unit of satellite navigation adaptive array. Simulation and experimental results show that compared with the same area of microstrip antenna array, the antenna array gain of 10 ° elevation increased more than 2d B, gain flatness decreased 2d B; In addition the antenna array has better array isolation and in the Better axis ratio within ± 80 ° beam. The successful development of dielectric resonant antenna and its adaptive array is of great significance for the miniaturization of navigation antenna and receiver.