论文部分内容阅读
许多移动通信场合都需要体积小,重量轻的小型接收和发射天线。微带贴片天线以其抛面低,重量轻等优点而成为天线设计者的首选。然而,为了获得较大的带宽,通常必须增大天线的体积。提出了一种新型的超小型化天线,在天线模型的适当位置处加入短路探针,在保持天线大小不变的情况下,大幅度降低了超小型化天线的驻波比。另外,为了提高天线的增益,在接地板上开L型槽,使天线的增益增大了5.6倍。通过数值模拟所得实验结果发现,天线的带宽从没有短路探针时的0MHz增大到9MHz。
Many mobile communications applications require compact, lightweight receiving and transmitting antennas. Microstrip patch antenna with its low profile, light weight and other advantages of antenna designers become the first choice. However, in order to obtain a larger bandwidth, it is usually necessary to increase the size of the antenna. A new type of miniaturized antenna was proposed. By adding a short-circuit probe at an appropriate position of the antenna model, the VSWR of the miniaturized antenna was greatly reduced while keeping the size of the antenna unchanged. In addition, in order to improve the gain of the aerial, open the L-shaped groove in the ground plate, make the gain of the aerial increase 5.6 times. The experimental results obtained through numerical simulation found that the bandwidth of the antenna increased from 0MHz to 9MHz without shorting the probe.