摘要
设计了一种中心频率在2.45GHz的新型零阶谐振微带阵列天线。该天线由4个谐振单元级联组成,可形成有耗的零阶谐振结构。其测量结果表明:在中心频率为2.45GHz时,其电压反射系数达到了-32dB,对应的带宽为1.5%,增益达到10.8dBi,相对于单个贴片天线增加了5.6dB,与仿真结果吻合较好。与一般的微带阵列天线相比,其尺寸减小,性能提高,在微波能量传输和目标探测等领域具有良好的应用前景。
A new zero-order resonance microstrip array antenna at 2.45 GHz is studied. The antenna, which is composed of four cascading resonant units, can form a lossy zero-order resonator. The measurements show that：at 2.45 GHz, the vohage reflection coefficient of the array reaches -32 dB with bandwidth of 1.5%, and the gain reaches 10.8 dBi, which is increased by 5.6 dB compared to one single patch. The results of measurements and simulation accord agree well with each other. Compared with conventional microstrip array antennas, it is not only much smaller but also with improved performance. It has good application prospects in microwave power transmission and target detection.
出处
《信息与电子工程》
2009年第2期107-109,共3页
information and electronic engineering
关键词
微带天线
零阶谐振
阵列天线
microstrip antenna
zero-order resonance
array antenna
