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设计了一种采用平衡微带线馈电的具有梯形有源振子的印刷引向天线。对梯形印刷有源振子的阻抗特性进行了仿真,在此基础上进行了改进,首先是有源振子加载反射器,然后是有源振子加载引向器和反射器。仿真了天线的阻抗特性和辐射特性,并分别制作了天线实物进行测试。仿真与实验结果表明,有源振子加载引向器和反射器后的工作频带为2.0～2.45GHz,相对带宽达20.2%,带内增益为6dB左右,且具有较小的尺寸(60 mm×65 mm),可用于移动通信领域。
A printed lead antenna with a trapezoidal active dipole is designed using a balanced microstrip feed. Impedance characteristics of trapezoid-printed active dipole are simulated. Based on this, some improvements are made. First, the active oscillator is used to load the reflector, and then the active oscillator is used to load the director and the reflector. Simulation of the antenna impedance and radiation characteristics, and were made of the antenna in-kind test. Simulation and experimental results show that the operating frequency band of the active oscillator loaded with the director and the reflector is 2.0 ~ 2.45GHz, the relative bandwidth is 20.2%, the gain in the band is about 6dB, and the smaller the size (60 mm × 65 mm), can be used in the field of mobile communications.