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本文研究设计了某C波段共形微带天线。该天线在60mm*60mm的有限尺寸范围内由4个辐射单元构成了一个2*2的微带阵列天线。辐射单元采用开槽的形式,通过调整馈线插入深度,使馈线与贴片单元达到良好的阻抗匹配。从仿真结果和实测结果可以看出,该天线电压驻波比在f 0±20MHz的频率范围内均小于1.5,且实测方向图与仿真方向图非常吻合,在f 0处天线增益达到8.4dB,满足设计指标要求,性能优良,可以满足军事飞行器的使用要求。
This paper studies the design of a C-band conformal microstrip antenna. The antenna consists of 4 radiating elements in a 2 x 2 microstrip array antenna in a limited size range of 60 mm * 60 mm. Radiation unit slotted form, by adjusting the feeder insertion depth, the feeder and the patch unit to achieve a good impedance matching. From the simulation results and measured results, it can be seen that the VSWR of the antenna is less than 1.5 in the frequency range of f 0 ± 20MHz, and the measured patterns are in good agreement with the simulation patterns. The antenna gain reaches 8.4dB at f 0, Meet the design requirements, excellent performance, to meet the military requirements of the use of the aircraft.