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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Probe-fed microstrip antennas loaded with very high-permittivity ceramics
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Probe-fed microstrip antennas loaded with very high-permittivity ceramics

机译：装有超高介电常数陶瓷的探头馈送微带天线

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This article reports the feasibility study of miniaturizing probe-fed microstrip patch antennas by dielectric loading. The loading materials are barium tetratitanate ceramics of very high dielectric constant (epsilon(r) = 38, 80). It is shown that, simply through loading, the antenna sizes are greatly reduced; however, the antenna performances are deteriorated. For instance, the antenna gain becomes lower. Then enhancement of the antenna performances follows. A substrate-superstrate structure is used to recover the gain. Both the experiments and the finite-difference time-domain (FDTD) simulations demonstrate that the gain and impedance bandwidth can be retrieved such that they are comparable to those of conventional microstrip antennas loaded with low permittivity materials (epsilon(r) < 3). (c) 2006 Wiley Periodicals, Inc.
机译：本文报道了通过电介质负载使探针馈电微带贴片天线小型化的可行性研究。填充材料是介电常数非常高的四钛酸钡陶瓷（ε= 38、80）。结果表明，仅通过负载，天线尺寸就大大减小了。但是，天线性能变差。例如，天线增益变低。然后，增强天线性能。衬底-衬底结构用于恢复增益。实验和有限差分时域（FDTD）仿真均表明，可以获取增益和阻抗带宽，从而使其与装有低介电常数材料（epsilon（r）<3）的常规微带天线相当。 （c）2006年Wiley Periodicals，Inc.

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