首页> 外国专利> Slotted antenna including an artificial dielectric substrate with embedded periodic conducting rings, for achieving an ideally-uniform, hemispherical radiation/reception when used as a single antenna element, or for azimuth(φ)-independent impedance-matched electronic beam scanning when used as a large antenna array

Slotted antenna including an artificial dielectric substrate with embedded periodic conducting rings, for achieving an ideally-uniform, hemispherical radiation/reception when used as a single antenna element, or for azimuth(φ)-independent impedance-matched electronic beam scanning when used as a large antenna array

机译：缝隙天线，包括带有嵌入式周期性导电环的人工介电基板，用于在用作单个天线元件时实现理想的均匀半球辐射/接收，或者在用作天线时用于独立于方位角（φ）的阻抗匹配电子束扫描大天线阵列

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摘要

A new antenna includes a rectangular slot element provided on a conducting plate and covered by a special substrate portion. The substrate portion includes stacked layers of capacitively-loaded conducting ring elements, arranged in the form of an (e.g., periodic) array in each layer. The slot antenna element is excited by a parallel-plate waveguide, which is fabricated below the conducting plate on which the slot antenna is made. The antenna design, when used in the form of a single antenna element, would produce ideally uniform power radiation over all directions in the upper hemi-spherical space. A large periodic array of such ideally isotropic antenna elements permits electronic beam scanning and has a performance of power coupling from signal sources at the antenna inputs which is independent of the azimuth (Φ) scanning direction, dependent only on one spatial variable (elevation angle, θ) of scanning. Such performance from an antenna array normally can not be achieved using conventional designs. Such an antenna array may be used in communications and radars.

机译：一种新的天线，其包括设置在导电板上并被特殊基板部分覆盖的矩形缝隙元件。衬底部分包括电容性加载的导电环元件的堆叠层，其以（例如，周期性）阵列的形式布置在每一层中。缝隙天线元件由平行板波导激励，该平行板波导制造在制作缝隙天线的导电板下方。当以单个天线元件的形式使用时，天线设计将在上半球形空间中的所有方向上产生理想的均匀功率辐射。这种理想各向同性的天线元件的大周期阵列可以进行电子束扫描，并且具有天线输入端信号源的功率耦合性能，而与方位角（Φ）扫描方向无关，仅取决于一个空间变量（仰角， θ）。使用常规设计通常无法实现天线阵列的这种性能。这样的天线阵列可以用于通信和雷达中。

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公开/公告号US8471776B2

专利类型
公开/公告日2013-06-25

原文格式PDF
申请/专利权人 NIROD K. DAS;
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申请/专利号US20090649077
发明设计人 NIROD K. DAS;
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申请日2009-12-29
分类号H01Q13/10;H01Q15/02;
国家 US
入库时间 2022-08-21 16:45:50

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