一种介质埋藏异形微带八木天线的设计

为达到某重点项目性能要求,综合运用微带天线、八木天线和介质埋藏天线理论及设计方法,设计出了一种介质埋藏异形微带八木天线.该天线将传统八木天线的引向振子由一个改变为两个,形成“￥”形,用来规划波束方向和形成双波束;在天线贴片两旁增加“栅栏”,聚集了电磁波的辐射,提高了天线增益,同时还获得了较大的相对阻抗带宽.测试表明:在...

The design of dielectric embedded special-shaped microstrip Yagi antenna

In order to meet the performance requirements of a key project, the theory and design method of microstrip antennas, Yagi antennas and dielectric embedded antennas were used comprehensively to design dielectric embedded special-shaped microstrip Yagi antennas. This antenna changes the leading vibrator of the traditional Yagi antenna from one to two, forming a “￥” shape, which is used to plan the beam direction and form a dual-beam; adding “fences” on both sides of the antenna patch to gather electromagnetic wave radiation. The antenna gain is improved, and a larger relative impedance bandwidth is also obtained. Tests show that at a center frequency in the Ku band, its absolute bandwidth is 1.9 GHz and its maximum gain is 3.92 dB. There are two main lobes on the E plane: at θ=15°, the lobe width is 11°; at θ=347°, the lobe width is 10°, which shows that the antenna meets the project requirements in performance and function, and plays a key role in the reception and transmission of signals in the project. In addition, the antenna also has broad application value in other communication, reconnaissance and interference situations.