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    • 23. 发明授权
    • Reduced weight artificial dielectric antennas and method for providing the same
    • 减少人造介质天线的重量和提供它的方法
    • US06567048B2
    • 2003-05-20
    • US09917291
    • 2001-07-26
    • William E. McKinzie, IIIGreg Mendolia
    • William E. McKinzie, IIIGreg Mendolia
    • H01Q136
    • H01Q9/0407H01Q1/38H01Q9/27
    • An artificial anisotropic dielectric material can be used as a microstrip patch antenna substrate. The artificial dielectric can be easily designed for the purpose of weight reduction. Preferably, the artificial dielectric is comprised of a periodic stack of low and high permittivity layers. The layers can be oriented vertically below the patch to support electric fields consistent with desired resonant modes. Substrates may be engineered for both linearly and circularly polarized patch antennas. Antenna weight can be reduced to ⅙th up to {fraction (1/30)}th of the original weight using different types of high permittivity layers. This concept has numerous applications in electrically small and lightweight antenna elements such as PIFA antennas. In accordance with one aspect of the invention, the artificial dielectric is comprised of an interlocking structure of low and high permittivity layers for ease of assembly and for overall stability. In accordance with another aspects the high permittivity layers can be comprised of FSS cards, and can include metallized tabs for further simplification of assembly.
    • 可以使用人造各向异性介电材料作为微带贴片天线基板。 人造电介质可以容易地设计用于减轻重量。 优选地,人造电介质由低介电常数层和高介电常数层的周期性堆叠构成。 层可以垂直地定向在贴片下方以支持与期望的谐振模式一致的电场。 衬底可以被设计用于线性和圆偏振贴片天线。 使用不同类型的高介电常数层,天线重量可以减少到原始重量的1/30。 该概念在诸如PIFA天线的电小型和轻量级天线元件中具有许多应用。 根据本发明的一个方面,人造电介质包括低介电常数层和高介电常数层的互锁结构,以便于组装和整体稳定性。 根据另一方面,高电容率层可以由FSS卡组成,并且可以包括用于进一步简化组装的金属化接片。